diff --git a/lib/gitlab/git/repository_mirroring.rb b/lib/gitlab/git/repository_mirroring.rb
index 65eb5cc18cf310ac20d418e63ab7e0f43c0c2cd4..752a91fbb602809ea4e6948b7911ff5e0eb1e432 100644
--- a/lib/gitlab/git/repository_mirroring.rb
+++ b/lib/gitlab/git/repository_mirroring.rb
@@ -2,34 +2,7 @@ module Gitlab
   module Git
     module RepositoryMirroring
       def remote_branches(remote_name)
-        gitaly_migrate(:ref_find_all_remote_branches) do |is_enabled|
-          if is_enabled
-            gitaly_ref_client.remote_branches(remote_name)
-          else
-            Gitlab::GitalyClient::StorageSettings.allow_disk_access do
-              rugged_remote_branches(remote_name)
-            end
-          end
-        end
-      end
-
-      private
-
-      def rugged_remote_branches(remote_name)
-        branches = []
-
-        rugged.references.each("refs/remotes/#{remote_name}/*").map do |ref|
-          name = ref.name.sub(%r{\Arefs/remotes/#{remote_name}/}, '')
-
-          begin
-            target_commit = Gitlab::Git::Commit.find(self, ref.target.oid)
-            branches << Gitlab::Git::Branch.new(self, name, ref.target, target_commit)
-          rescue Rugged::ReferenceError
-            # Omit invalid branch
-          end
-        end
-
-        branches
+        gitaly_ref_client.remote_branches(remote_name)
       end
     end
   end