Remove code related to object hierarchy in MySQL

These are not required because MySQL is not
supported anymore

4 files changed, 2 insertions, 13 deletions

diff --git a/app/services/groups/nested_create_service.rb b/app/services/groups/nested_create_service.rb
index 01bd685712b..a51ac9aa593 100644
--- a/app/services/groups/nested_create_service.rb
+++ b/app/services/groups/nested_create_service.rb
@@ -18,10 +18,6 @@ module Groups
         return namespace
       end
 
-      if group_path.include?('/') && !Group.supports_nested_objects?
-        raise 'Nested groups are not supported on MySQL'
-      end
-
       create_group_path
     end
 
diff --git a/app/services/groups/transfer_service.rb b/app/services/groups/transfer_service.rb
index 98e7c311572..fe7e07ef9f0 100644
--- a/app/services/groups/transfer_service.rb
+++ b/app/services/groups/transfer_service.rb
@@ -43,7 +43,6 @@ module Groups
 
     def ensure_allowed_transfer
       raise_transfer_error(:group_is_already_root) if group_is_already_root?
-      raise_transfer_error(:database_not_supported) unless Group.supports_nested_objects?
       raise_transfer_error(:same_parent_as_current) if same_parent?
       raise_transfer_error(:invalid_policies) unless valid_policies?
       raise_transfer_error(:namespace_with_same_path) if namespace_with_same_path?
diff --git a/app/services/members/destroy_service.rb b/app/services/members/destroy_service.rb
index c8d5e563cd8..0164760920f 100644
--- a/app/services/members/destroy_service.rb
+++ b/app/services/members/destroy_service.rb
@@ -31,7 +31,7 @@ module Members
       return unless member.is_a?(GroupMember) && member.user && member.group
 
       delete_project_members(member)
-      delete_subgroup_members(member) if Group.supports_nested_objects?
+      delete_subgroup_members(member)
     end
 
     def delete_project_members(member)
diff --git a/app/services/users/refresh_authorized_projects_service.rb b/app/services/users/refresh_authorized_projects_service.rb
index 4a26d2be2af..ae67b4f5256 100644
--- a/app/services/users/refresh_authorized_projects_service.rb
+++ b/app/services/users/refresh_authorized_projects_service.rb
@@ -102,13 +102,7 @@ module Users
     end
 
     def fresh_authorizations
-      klass = if Group.supports_nested_objects?
-                Gitlab::ProjectAuthorizations::WithNestedGroups
-              else
-                Gitlab::ProjectAuthorizations::WithoutNestedGroups
-              end
-
-      klass.new(user).calculate
+      Gitlab::ProjectAuthorizations.new(user).calculate
     end
   end
 end