wiki: Remove DeletePage RPC

The Wiki service has functional duplication with the OperationService
RPCs. This means that if the clients are refactored, the wiki RPCs can
be removed. This change removes the DeletePage RPC as the client that
was using it, is no more: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/57106.

The proto is removed too, as the client is unable to call the RPC and
doesn't use it anymore.

12 files changed, 67 insertions, 476 deletions

diff --git a/internal/gitaly/service/wiki/delete_page.go b/internal/gitaly/service/wiki/delete_page.go
deleted file mode 100644
index 77fcd45c6..000000000
--- a/internal/gitaly/service/wiki/delete_page.go
+++ /dev/null
@@ -1,37 +0,0 @@
-package wiki
-
-import (
-	"context"
-	"fmt"
-
-	"gitlab.com/gitlab-org/gitaly/internal/gitaly/rubyserver"
-	"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
-)
-
-func (s *server) WikiDeletePage(ctx context.Context, request *gitalypb.WikiDeletePageRequest) (*gitalypb.WikiDeletePageResponse, error) {
-	if err := validateWikiDeletePageRequest(request); err != nil {
-		return nil, status.Errorf(codes.InvalidArgument, "WikiDeletePage: %v", err)
-	}
-
-	client, err := s.ruby.WikiServiceClient(ctx)
-	if err != nil {
-		return nil, err
-	}
-
-	clientCtx, err := rubyserver.SetHeaders(ctx, s.locator, request.GetRepository())
-	if err != nil {
-		return nil, err
-	}
-
-	return client.WikiDeletePage(clientCtx, request)
-}
-
-func validateWikiDeletePageRequest(request *gitalypb.WikiDeletePageRequest) error {
-	if len(request.GetPagePath()) == 0 {
-		return fmt.Errorf("empty PagePath")
-	}
-
-	return validateRequestCommitDetails(request)
-}
diff --git a/internal/gitaly/service/wiki/delete_page_test.go b/internal/gitaly/service/wiki/delete_page_test.go
deleted file mode 100644
index 3518e9690..000000000
--- a/internal/gitaly/service/wiki/delete_page_test.go
+++ /dev/null
@@ -1,183 +0,0 @@
-package wiki
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/require"
-	"gitlab.com/gitlab-org/gitaly/internal/git"
-	"gitlab.com/gitlab-org/gitaly/internal/git/gittest"
-	"gitlab.com/gitlab-org/gitaly/internal/git/localrepo"
-	"gitlab.com/gitlab-org/gitaly/internal/gitaly/config"
-	"gitlab.com/gitlab-org/gitaly/internal/gitaly/rubyserver"
-	"gitlab.com/gitlab-org/gitaly/internal/testhelper"
-	"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
-	"google.golang.org/grpc/codes"
-)
-
-func testSuccessfulWikiDeletePageRequest(t *testing.T, cfg config.Cfg, rubySrv *rubyserver.Server) {
-	wikiRepoProto, wikiRepoPath, cleanupFunc := setupWikiRepo(t, cfg)
-	defer cleanupFunc()
-
-	wikiRepo := localrepo.NewTestRepo(t, cfg, wikiRepoProto)
-
-	ctx, cancel := testhelper.Context()
-	defer cancel()
-
-	client := setupWikiService(t, cfg, rubySrv)
-
-	pageName := "A talé of two wikis"
-	authorID := int32(1)
-	authorUserName := []byte("ahmad")
-	authorName := []byte("Ahmad Sherif")
-	authorEmail := []byte("ahmad@gitlab.com")
-	message := []byte("Delete " + pageName)
-	content := []byte("It was the best of wikis, it was the worst of wikis")
-
-	testCases := []struct {
-		desc string
-		req  *gitalypb.WikiDeletePageRequest
-	}{
-		{
-			desc: "with user id and username",
-			req: &gitalypb.WikiDeletePageRequest{
-				Repository: wikiRepoProto,
-				PagePath:   []byte("a-talé-of-two-wikis"),
-				CommitDetails: &gitalypb.WikiCommitDetails{
-					Name:     authorName,
-					Email:    authorEmail,
-					Message:  message,
-					UserId:   authorID,
-					UserName: authorUserName,
-				},
-			},
-		},
-		{
-			desc: "without user id and username", // deprecate in GitLab 11.0 https://gitlab.com/gitlab-org/gitaly/issues/1154
-			req: &gitalypb.WikiDeletePageRequest{
-				Repository: wikiRepoProto,
-				PagePath:   []byte("a-talé-of-two-wikis"),
-				CommitDetails: &gitalypb.WikiCommitDetails{
-					Name:    authorName,
-					Email:   authorEmail,
-					Message: message,
-				},
-			},
-		},
-	}
-
-	for _, tc := range testCases {
-		t.Run(tc.desc, func(t *testing.T) {
-			writeWikiPage(t, client, wikiRepoProto, createWikiPageOpts{title: pageName, content: content})
-
-			_, err := client.WikiDeletePage(ctx, tc.req)
-			require.NoError(t, err)
-
-			headID := gittest.Exec(t, cfg, "-C", wikiRepoPath, "show", "--format=format:%H", "--no-patch", "HEAD")
-			commit, err := wikiRepo.ReadCommit(ctx, git.Revision(headID))
-			require.NoError(t, err, "look up git commit after deleting a wiki page")
-
-			require.Equal(t, authorName, commit.Author.Name, "author name mismatched")
-			require.Equal(t, authorEmail, commit.Author.Email, "author email mismatched")
-			require.Equal(t, message, commit.Subject, "message mismatched")
-		})
-	}
-}
-
-func testFailedWikiDeletePageDueToValidations(t *testing.T, cfg config.Cfg, rubySrv *rubyserver.Server) {
-	wikiRepo, _, cleanupFunc := setupWikiRepo(t, cfg)
-	defer cleanupFunc()
-
-	client := setupWikiService(t, cfg, rubySrv)
-
-	commitDetails := &gitalypb.WikiCommitDetails{
-		Name:     []byte("Ahmad Sherif"),
-		Email:    []byte("ahmad@gitlab.com"),
-		Message:  []byte("Delete a wiki page"),
-		UserId:   int32(1),
-		UserName: []byte("ahmad"),
-	}
-
-	testCases := []struct {
-		desc    string
-		request *gitalypb.WikiDeletePageRequest
-		code    codes.Code
-	}{
-		{
-			desc: "non existent  page path",
-			request: &gitalypb.WikiDeletePageRequest{
-				Repository:    wikiRepo,
-				PagePath:      []byte("does-not-exist"),
-				CommitDetails: commitDetails,
-			},
-			code: codes.NotFound,
-		},
-		{
-			desc: "empty page path",
-			request: &gitalypb.WikiDeletePageRequest{
-				Repository:    wikiRepo,
-				CommitDetails: commitDetails,
-			},
-			code: codes.InvalidArgument,
-		},
-		{
-			desc: "empty commit details",
-			request: &gitalypb.WikiDeletePageRequest{
-				Repository: wikiRepo,
-				PagePath:   []byte("does-not-matter"),
-			},
-			code: codes.InvalidArgument,
-		},
-		{
-			desc: "empty commit details' name",
-			request: &gitalypb.WikiDeletePageRequest{
-				Repository: wikiRepo,
-				PagePath:   []byte("does-not-matter"),
-				CommitDetails: &gitalypb.WikiCommitDetails{
-					Email:    []byte("a@b.com"),
-					Message:  []byte("A message"),
-					UserId:   int32(1),
-					UserName: []byte("username"),
-				},
-			},
-			code: codes.InvalidArgument,
-		},
-		{
-			desc: "empty commit details' email",
-			request: &gitalypb.WikiDeletePageRequest{
-				Repository: wikiRepo,
-				PagePath:   []byte("does-not-matter"),
-				CommitDetails: &gitalypb.WikiCommitDetails{
-					Name:     []byte("A name"),
-					Message:  []byte("A message"),
-					UserId:   int32(1),
-					UserName: []byte("username"),
-				},
-			},
-			code: codes.InvalidArgument,
-		},
-		{
-			desc: "empty commit details' message",
-			request: &gitalypb.WikiDeletePageRequest{
-				Repository: wikiRepo,
-				PagePath:   []byte("does-not-matter"),
-				CommitDetails: &gitalypb.WikiCommitDetails{
-					Name:     []byte("A name"),
-					Email:    []byte("a@b.com"),
-					UserId:   int32(1),
-					UserName: []byte("username"),
-				},
-			},
-			code: codes.InvalidArgument,
-		},
-	}
-
-	for _, testCase := range testCases {
-		t.Run(testCase.desc, func(t *testing.T) {
-			ctx, cancel := testhelper.Context()
-			defer cancel()
-
-			_, err := client.WikiDeletePage(ctx, testCase.request)
-			testhelper.RequireGrpcError(t, err, testCase.code)
-		})
-	}
-}
diff --git a/internal/gitaly/service/wiki/testhelper_test.go b/internal/gitaly/service/wiki/testhelper_test.go
index 11ce4e964..cfd661fb0 100644
--- a/internal/gitaly/service/wiki/testhelper_test.go
+++ b/internal/gitaly/service/wiki/testhelper_test.go
@@ -63,8 +63,6 @@ func TestWithRubySidecar(t *testing.T) {
 	t.Cleanup(rubySrv.Stop)
 
 	fs := []func(t *testing.T, cfg config.Cfg, rubySrv *rubyserver.Server){
-		testSuccessfulWikiDeletePageRequest,
-		testFailedWikiDeletePageDueToValidations,
 		testSuccessfulWikiFindPageRequest,
 		testSuccessfulWikiFindPageSameTitleDifferentPathRequest,
 		testSuccessfulWikiFindPageRequestWithTrailers,
diff --git a/internal/praefect/coordinator.go b/internal/praefect/coordinator.go
index ea53a5fd4..b30606883 100644
--- a/internal/praefect/coordinator.go
+++ b/internal/praefect/coordinator.go
@@ -84,7 +84,6 @@ var transactionRPCs = map[string]transactionsCondition{
 	"/gitaly.RepositoryService/WriteRef":                     transactionsEnabled,
 	"/gitaly.SSHService/SSHReceivePack":                      transactionsEnabled,
 	"/gitaly.SmartHTTPService/PostReceivePack":               transactionsEnabled,
-	"/gitaly.WikiService/WikiDeletePage":                     transactionsEnabled,
 	"/gitaly.WikiService/WikiUpdatePage":                     transactionsEnabled,
 	"/gitaly.WikiService/WikiWritePage":                      transactionsEnabled,
 
diff --git a/internal/praefect/protoregistry/protoregistry_test.go b/internal/praefect/protoregistry/protoregistry_test.go
index 7d5a95033..4a99e31b2 100644
--- a/internal/praefect/protoregistry/protoregistry_test.go
+++ b/internal/praefect/protoregistry/protoregistry_test.go
@@ -160,7 +160,6 @@ func TestNewProtoRegistry(t *testing.T) {
 		"WikiService": map[string]protoregistry.OpType{
 			"WikiWritePage":   protoregistry.OpMutator,
 			"WikiUpdatePage":  protoregistry.OpMutator,
-			"WikiDeletePage":  protoregistry.OpMutator,
 			"WikiFindPage":    protoregistry.OpAccessor,
 			"WikiGetAllPages": protoregistry.OpAccessor,
 			"WikiListPages":   protoregistry.OpAccessor,
diff --git a/proto/go/gitalypb/wiki.pb.go b/proto/go/gitalypb/wiki.pb.go
index fa62071b4..54de0aa20 100644
--- a/proto/go/gitalypb/wiki.pb.go
+++ b/proto/go/gitalypb/wiki.pb.go
@@ -46,7 +46,7 @@ func (x WikiGetAllPagesRequest_SortBy) String() string {
 }
 
 func (WikiGetAllPagesRequest_SortBy) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{11, 0}
+	return fileDescriptor_5c56f90469cec0af, []int{9, 0}
 }
 
 type WikiListPagesRequest_SortBy int32
@@ -71,7 +71,7 @@ func (x WikiListPagesRequest_SortBy) String() string {
 }
 
 func (WikiListPagesRequest_SortBy) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{13, 0}
+	return fileDescriptor_5c56f90469cec0af, []int{11, 0}
 }
 
 type WikiCommitDetails struct {
@@ -522,92 +522,6 @@ func (m *WikiUpdatePageResponse) GetError() []byte {
 	return nil
 }
 
-type WikiDeletePageRequest struct {
-	Repository           *Repository        `protobuf:"bytes,1,opt,name=repository,proto3" json:"repository,omitempty"`
-	PagePath             []byte             `protobuf:"bytes,2,opt,name=page_path,json=pagePath,proto3" json:"page_path,omitempty"`
-	CommitDetails        *WikiCommitDetails `protobuf:"bytes,3,opt,name=commit_details,json=commitDetails,proto3" json:"commit_details,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}           `json:"-"`
-	XXX_unrecognized     []byte             `json:"-"`
-	XXX_sizecache        int32              `json:"-"`
-}
-
-func (m *WikiDeletePageRequest) Reset()         { *m = WikiDeletePageRequest{} }
-func (m *WikiDeletePageRequest) String() string { return proto.CompactTextString(m) }
-func (*WikiDeletePageRequest) ProtoMessage()    {}
-func (*WikiDeletePageRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{7}
-}
-
-func (m *WikiDeletePageRequest) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_WikiDeletePageRequest.Unmarshal(m, b)
-}
-func (m *WikiDeletePageRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_WikiDeletePageRequest.Marshal(b, m, deterministic)
-}
-func (m *WikiDeletePageRequest) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_WikiDeletePageRequest.Merge(m, src)
-}
-func (m *WikiDeletePageRequest) XXX_Size() int {
-	return xxx_messageInfo_WikiDeletePageRequest.Size(m)
-}
-func (m *WikiDeletePageRequest) XXX_DiscardUnknown() {
-	xxx_messageInfo_WikiDeletePageRequest.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_WikiDeletePageRequest proto.InternalMessageInfo
-
-func (m *WikiDeletePageRequest) GetRepository() *Repository {
-	if m != nil {
-		return m.Repository
-	}
-	return nil
-}
-
-func (m *WikiDeletePageRequest) GetPagePath() []byte {
-	if m != nil {
-		return m.PagePath
-	}
-	return nil
-}
-
-func (m *WikiDeletePageRequest) GetCommitDetails() *WikiCommitDetails {
-	if m != nil {
-		return m.CommitDetails
-	}
-	return nil
-}
-
-type WikiDeletePageResponse struct {
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *WikiDeletePageResponse) Reset()         { *m = WikiDeletePageResponse{} }
-func (m *WikiDeletePageResponse) String() string { return proto.CompactTextString(m) }
-func (*WikiDeletePageResponse) ProtoMessage()    {}
-func (*WikiDeletePageResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{8}
-}
-
-func (m *WikiDeletePageResponse) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_WikiDeletePageResponse.Unmarshal(m, b)
-}
-func (m *WikiDeletePageResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_WikiDeletePageResponse.Marshal(b, m, deterministic)
-}
-func (m *WikiDeletePageResponse) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_WikiDeletePageResponse.Merge(m, src)
-}
-func (m *WikiDeletePageResponse) XXX_Size() int {
-	return xxx_messageInfo_WikiDeletePageResponse.Size(m)
-}
-func (m *WikiDeletePageResponse) XXX_DiscardUnknown() {
-	xxx_messageInfo_WikiDeletePageResponse.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_WikiDeletePageResponse proto.InternalMessageInfo
-
 type WikiFindPageRequest struct {
 	Repository           *Repository `protobuf:"bytes,1,opt,name=repository,proto3" json:"repository,omitempty"`
 	Title                []byte      `protobuf:"bytes,2,opt,name=title,proto3" json:"title,omitempty"`
@@ -622,7 +536,7 @@ func (m *WikiFindPageRequest) Reset()         { *m = WikiFindPageRequest{} }
 func (m *WikiFindPageRequest) String() string { return proto.CompactTextString(m) }
 func (*WikiFindPageRequest) ProtoMessage()    {}
 func (*WikiFindPageRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{9}
+	return fileDescriptor_5c56f90469cec0af, []int{7}
 }
 
 func (m *WikiFindPageRequest) XXX_Unmarshal(b []byte) error {
@@ -684,7 +598,7 @@ func (m *WikiFindPageResponse) Reset()         { *m = WikiFindPageResponse{} }
 func (m *WikiFindPageResponse) String() string { return proto.CompactTextString(m) }
 func (*WikiFindPageResponse) ProtoMessage()    {}
 func (*WikiFindPageResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{10}
+	return fileDescriptor_5c56f90469cec0af, []int{8}
 }
 
 func (m *WikiFindPageResponse) XXX_Unmarshal(b []byte) error {
@@ -727,7 +641,7 @@ func (m *WikiGetAllPagesRequest) Reset()         { *m = WikiGetAllPagesRequest{}
 func (m *WikiGetAllPagesRequest) String() string { return proto.CompactTextString(m) }
 func (*WikiGetAllPagesRequest) ProtoMessage()    {}
 func (*WikiGetAllPagesRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{11}
+	return fileDescriptor_5c56f90469cec0af, []int{9}
 }
 
 func (m *WikiGetAllPagesRequest) XXX_Unmarshal(b []byte) error {
@@ -790,7 +704,7 @@ func (m *WikiGetAllPagesResponse) Reset()         { *m = WikiGetAllPagesResponse
 func (m *WikiGetAllPagesResponse) String() string { return proto.CompactTextString(m) }
 func (*WikiGetAllPagesResponse) ProtoMessage()    {}
 func (*WikiGetAllPagesResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{12}
+	return fileDescriptor_5c56f90469cec0af, []int{10}
 }
 
 func (m *WikiGetAllPagesResponse) XXX_Unmarshal(b []byte) error {
@@ -841,7 +755,7 @@ func (m *WikiListPagesRequest) Reset()         { *m = WikiListPagesRequest{} }
 func (m *WikiListPagesRequest) String() string { return proto.CompactTextString(m) }
 func (*WikiListPagesRequest) ProtoMessage()    {}
 func (*WikiListPagesRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{13}
+	return fileDescriptor_5c56f90469cec0af, []int{11}
 }
 
 func (m *WikiListPagesRequest) XXX_Unmarshal(b []byte) error {
@@ -909,7 +823,7 @@ func (m *WikiListPagesResponse) Reset()         { *m = WikiListPagesResponse{} }
 func (m *WikiListPagesResponse) String() string { return proto.CompactTextString(m) }
 func (*WikiListPagesResponse) ProtoMessage()    {}
 func (*WikiListPagesResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_5c56f90469cec0af, []int{14}
+	return fileDescriptor_5c56f90469cec0af, []int{12}
 }
 
 func (m *WikiListPagesResponse) XXX_Unmarshal(b []byte) error {
@@ -947,8 +861,6 @@ func init() {
 	proto.RegisterType((*WikiWritePageResponse)(nil), "gitaly.WikiWritePageResponse")
 	proto.RegisterType((*WikiUpdatePageRequest)(nil), "gitaly.WikiUpdatePageRequest")
 	proto.RegisterType((*WikiUpdatePageResponse)(nil), "gitaly.WikiUpdatePageResponse")
-	proto.RegisterType((*WikiDeletePageRequest)(nil), "gitaly.WikiDeletePageRequest")
-	proto.RegisterType((*WikiDeletePageResponse)(nil), "gitaly.WikiDeletePageResponse")
 	proto.RegisterType((*WikiFindPageRequest)(nil), "gitaly.WikiFindPageRequest")
 	proto.RegisterType((*WikiFindPageResponse)(nil), "gitaly.WikiFindPageResponse")
 	proto.RegisterType((*WikiGetAllPagesRequest)(nil), "gitaly.WikiGetAllPagesRequest")
@@ -960,66 +872,64 @@ func init() {
 func init() { proto.RegisterFile("wiki.proto", fileDescriptor_5c56f90469cec0af) }
 
 var fileDescriptor_5c56f90469cec0af = []byte{
-	// 941 bytes of a gzipped FileDescriptorProto
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 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -1036,7 +946,6 @@ const _ = grpc.SupportPackageIsVersion4
 type WikiServiceClient interface {
 	WikiWritePage(ctx context.Context, opts ...grpc.CallOption) (WikiService_WikiWritePageClient, error)
 	WikiUpdatePage(ctx context.Context, opts ...grpc.CallOption) (WikiService_WikiUpdatePageClient, error)
-	WikiDeletePage(ctx context.Context, in *WikiDeletePageRequest, opts ...grpc.CallOption) (*WikiDeletePageResponse, error)
 	// WikiFindPage returns a stream because the page's raw_data field may be arbitrarily large.
 	WikiFindPage(ctx context.Context, in *WikiFindPageRequest, opts ...grpc.CallOption) (WikiService_WikiFindPageClient, error)
 	WikiGetAllPages(ctx context.Context, in *WikiGetAllPagesRequest, opts ...grpc.CallOption) (WikiService_WikiGetAllPagesClient, error)
@@ -1119,15 +1028,6 @@ func (x *wikiServiceWikiUpdatePageClient) CloseAndRecv() (*WikiUpdatePageRespons
 	return m, nil
 }
 
-func (c *wikiServiceClient) WikiDeletePage(ctx context.Context, in *WikiDeletePageRequest, opts ...grpc.CallOption) (*WikiDeletePageResponse, error) {
-	out := new(WikiDeletePageResponse)
-	err := c.cc.Invoke(ctx, "/gitaly.WikiService/WikiDeletePage", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 func (c *wikiServiceClient) WikiFindPage(ctx context.Context, in *WikiFindPageRequest, opts ...grpc.CallOption) (WikiService_WikiFindPageClient, error) {
 	stream, err := c.cc.NewStream(ctx, &_WikiService_serviceDesc.Streams[2], "/gitaly.WikiService/WikiFindPage", opts...)
 	if err != nil {
@@ -1228,7 +1128,6 @@ func (x *wikiServiceWikiListPagesClient) Recv() (*WikiListPagesResponse, error)
 type WikiServiceServer interface {
 	WikiWritePage(WikiService_WikiWritePageServer) error
 	WikiUpdatePage(WikiService_WikiUpdatePageServer) error
-	WikiDeletePage(context.Context, *WikiDeletePageRequest) (*WikiDeletePageResponse, error)
 	// WikiFindPage returns a stream because the page's raw_data field may be arbitrarily large.
 	WikiFindPage(*WikiFindPageRequest, WikiService_WikiFindPageServer) error
 	WikiGetAllPages(*WikiGetAllPagesRequest, WikiService_WikiGetAllPagesServer) error
@@ -1245,9 +1144,6 @@ func (*UnimplementedWikiServiceServer) WikiWritePage(srv WikiService_WikiWritePa
 func (*UnimplementedWikiServiceServer) WikiUpdatePage(srv WikiService_WikiUpdatePageServer) error {
 	return status.Errorf(codes.Unimplemented, "method WikiUpdatePage not implemented")
 }
-func (*UnimplementedWikiServiceServer) WikiDeletePage(ctx context.Context, req *WikiDeletePageRequest) (*WikiDeletePageResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method WikiDeletePage not implemented")
-}
 func (*UnimplementedWikiServiceServer) WikiFindPage(req *WikiFindPageRequest, srv WikiService_WikiFindPageServer) error {
 	return status.Errorf(codes.Unimplemented, "method WikiFindPage not implemented")
 }
@@ -1314,24 +1210,6 @@ func (x *wikiServiceWikiUpdatePageServer) Recv() (*WikiUpdatePageRequest, error)
 	return m, nil
 }
 
-func _WikiService_WikiDeletePage_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(WikiDeletePageRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(WikiServiceServer).WikiDeletePage(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/gitaly.WikiService/WikiDeletePage",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(WikiServiceServer).WikiDeletePage(ctx, req.(*WikiDeletePageRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 func _WikiService_WikiFindPage_Handler(srv interface{}, stream grpc.ServerStream) error {
 	m := new(WikiFindPageRequest)
 	if err := stream.RecvMsg(m); err != nil {
@@ -1398,12 +1276,7 @@ func (x *wikiServiceWikiListPagesServer) Send(m *WikiListPagesResponse) error {
 var _WikiService_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "gitaly.WikiService",
 	HandlerType: (*WikiServiceServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "WikiDeletePage",
-			Handler:    _WikiService_WikiDeletePage_Handler,
-		},
-	},
+	Methods:     []grpc.MethodDesc{},
 	Streams: []grpc.StreamDesc{
 		{
 			StreamName:    "WikiWritePage",
diff --git a/proto/wiki.proto b/proto/wiki.proto
index c23584338..5cb1b71c2 100644
--- a/proto/wiki.proto
+++ b/proto/wiki.proto
@@ -18,11 +18,6 @@ service WikiService {
       op: MUTATOR
     };
   }
-  rpc WikiDeletePage(WikiDeletePageRequest) returns (WikiDeletePageResponse) {
-    option (op_type) = {
-      op: MUTATOR
-    };
-  }
   // WikiFindPage returns a stream because the page's raw_data field may be arbitrarily large.
   rpc WikiFindPage(WikiFindPageRequest) returns (stream WikiFindPageResponse) {
     option (op_type) = {
@@ -101,14 +96,6 @@ message WikiUpdatePageResponse {
   bytes error = 1;
 }
 
-message WikiDeletePageRequest {
-  Repository repository = 1 [(target_repository)=true];
-  bytes page_path = 2;
-  WikiCommitDetails commit_details = 3;
-}
-
-message WikiDeletePageResponse {}
-
 message WikiFindPageRequest {
   Repository repository = 1 [(target_repository)=true];
   bytes title = 2;
diff --git a/ruby/lib/gitaly_server/wiki_service.rb b/ruby/lib/gitaly_server/wiki_service.rb
index b92cd34ff..7c586e93f 100644
--- a/ruby/lib/gitaly_server/wiki_service.rb
+++ b/ruby/lib/gitaly_server/wiki_service.rb
@@ -2,17 +2,6 @@ module GitalyServer
   class WikiService < Gitaly::WikiService::Service
     include Utils
 
-    def wiki_delete_page(request, call)
-      repo = Gitlab::Git::Repository.from_gitaly(request.repository, call)
-      wiki = Gitlab::Git::Wiki.new(repo)
-      page_path = set_utf8!(request.page_path)
-      commit_details = commit_details_from_gitaly(request.commit_details)
-
-      wiki.delete_page(page_path, commit_details)
-
-      Gitaly::WikiDeletePageResponse.new
-    end
-
     def wiki_write_page(call)
       repo = name = format = commit_details = nil
       content = ""
diff --git a/ruby/lib/gitlab/git/wiki.rb b/ruby/lib/gitlab/git/wiki.rb
index 445feb0a2..452351afd 100644
--- a/ruby/lib/gitlab/git/wiki.rb
+++ b/ruby/lib/gitlab/git/wiki.rb
@@ -31,10 +31,6 @@ module Gitlab
         gollum_write_page(name, format, content, commit_details)
       end
 
-      def delete_page(page_path, commit_details)
-        gollum_delete_page(page_path, commit_details)
-      end
-
       def update_page(page_path, title, format, content, commit_details)
         gollum_update_page(page_path, title, format, content, commit_details)
       end
@@ -137,14 +133,6 @@ module Gitlab
         raise Gitlab::Git::Wiki::DuplicatePageError, e.message
       end
 
-      def gollum_delete_page(page_path, commit_details)
-        assert_type!(commit_details, CommitDetails)
-
-        with_committer_with_hooks(commit_details) do |committer|
-          gollum_wiki.delete_page(gollum_page_by_path(page_path), committer: committer)
-        end
-      end
-
       def gollum_update_page(page_path, title, format, content, commit_details)
         assert_type!(format, Symbol)
         assert_type!(commit_details, CommitDetails)
diff --git a/ruby/proto/gitaly/wiki_pb.rb b/ruby/proto/gitaly/wiki_pb.rb
index b655a5299..f650820bc 100644
--- a/ruby/proto/gitaly/wiki_pb.rb
+++ b/ruby/proto/gitaly/wiki_pb.rb
@@ -49,13 +49,6 @@ Google::Protobuf::DescriptorPool.generated_pool.build do
     add_message "gitaly.WikiUpdatePageResponse" do
       optional :error, :bytes, 1
     end
-    add_message "gitaly.WikiDeletePageRequest" do
-      optional :repository, :message, 1, "gitaly.Repository"
-      optional :page_path, :bytes, 2
-      optional :commit_details, :message, 3, "gitaly.WikiCommitDetails"
-    end
-    add_message "gitaly.WikiDeletePageResponse" do
-    end
     add_message "gitaly.WikiFindPageRequest" do
       optional :repository, :message, 1, "gitaly.Repository"
       optional :title, :bytes, 2
@@ -104,8 +97,6 @@ module Gitaly
   WikiWritePageResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gitaly.WikiWritePageResponse").msgclass
   WikiUpdatePageRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gitaly.WikiUpdatePageRequest").msgclass
   WikiUpdatePageResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gitaly.WikiUpdatePageResponse").msgclass
-  WikiDeletePageRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gitaly.WikiDeletePageRequest").msgclass
-  WikiDeletePageResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gitaly.WikiDeletePageResponse").msgclass
   WikiFindPageRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gitaly.WikiFindPageRequest").msgclass
   WikiFindPageResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gitaly.WikiFindPageResponse").msgclass
   WikiGetAllPagesRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gitaly.WikiGetAllPagesRequest").msgclass
diff --git a/ruby/proto/gitaly/wiki_services_pb.rb b/ruby/proto/gitaly/wiki_services_pb.rb
index d1cd1ceaa..cb63ec25a 100644
--- a/ruby/proto/gitaly/wiki_services_pb.rb
+++ b/ruby/proto/gitaly/wiki_services_pb.rb
@@ -16,7 +16,6 @@ module Gitaly
 
       rpc :WikiWritePage, stream(Gitaly::WikiWritePageRequest), Gitaly::WikiWritePageResponse
       rpc :WikiUpdatePage, stream(Gitaly::WikiUpdatePageRequest), Gitaly::WikiUpdatePageResponse
-      rpc :WikiDeletePage, Gitaly::WikiDeletePageRequest, Gitaly::WikiDeletePageResponse
       # WikiFindPage returns a stream because the page's raw_data field may be arbitrarily large.
       rpc :WikiFindPage, Gitaly::WikiFindPageRequest, stream(Gitaly::WikiFindPageResponse)
       rpc :WikiGetAllPages, Gitaly::WikiGetAllPagesRequest, stream(Gitaly::WikiGetAllPagesResponse)
diff --git a/ruby/spec/lib/gitlab/git/wiki_spec.rb b/ruby/spec/lib/gitlab/git/wiki_spec.rb
index 78745cc99..aca0f0dee 100644
--- a/ruby/spec/lib/gitlab/git/wiki_spec.rb
+++ b/ruby/spec/lib/gitlab/git/wiki_spec.rb
@@ -102,18 +102,6 @@ describe Gitlab::Git::Wiki do
     end
   end
 
-  describe '#delete_page' do
-    it 'only removes the page with the same path' do
-      create_page('page1', 'content')
-      create_page('*', 'content')
-
-      subject.delete_page('*', commit_details('whatever'))
-
-      expect(subject.pages.count).to eq(1)
-      expect(subject.pages.first.title).to eq('page1')
-    end
-  end
-
   describe '#update_page' do
     let(:old_title) { 'page1' }
     let(:new_content) { 'different content' }