Improving of static check analyze.

`unused` linter was enabled to report about unused code.
Unused code removed.

1 files changed, 0 insertions, 10 deletions

diff --git a/auth/rpccredentials.go b/auth/rpccredentials.go
index 4b7acc7b2..923ee8567 100644
--- a/auth/rpccredentials.go
+++ b/auth/rpccredentials.go
@@ -17,16 +17,6 @@ func RPCCredentials(sharedSecret string) credentials.PerRPCCredentials {
 	return &rpcCredentialsV2{sharedSecret: sharedSecret}
 }
 
-type rpcCredentials struct {
-	sharedSecret string
-}
-
-func (*rpcCredentials) RequireTransportSecurity() bool { return false }
-
-func (rc *rpcCredentials) GetRequestMetadata(context.Context, ...string) (map[string]string, error) {
-	return map[string]string{"authorization": "Bearer " + rc.sharedSecret}, nil
-}
-
 // RPCCredentialsV2 can be used with grpc.WithPerRPCCredentials to create
 // a grpc.DialOption that inserts an V2 (HMAC) token with the current
 // timestamp for authentication with a Gitaly server. The shared secret