try to move wiki if it does not exist

app/services/project_transfer_service.rb

@@ -27,9 +27,7 @@ class ProjectTransferService
       end
       # Move wiki repo also if present
-      if project.wikis.any?
       gitlab_shell.mv_repository("#{old_path}.wiki", "#{new_path}.wiki")
-      end
       true
     end