Revert "Removed obsolete file from Makefile.am."
Revert "Removed obsolete file from Makefile.am."

This reverts commit e9b368655a062848b1c592ee16df5652d866be08.

google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf