THRIFT-5338: Remove lib/go/thrift/go.mod
THRIFT-5338: Remove lib/go/thrift/go.mod

Client: go

Having it under a subdirectory has some unexpected consequences, so
remove it for now. Another PR will be open up later to add it back to
the root directory.

strava/thrift,strava/thrift,jeking3/thrift,apache/thrift,strava/thrift,nsuke/thrift,bforbis/thrift,jeking3/thrift,bforbis/thrift,bforbis/thrift,apache/thrift,apache/thrift,apache/thrift,nsuke/thrift,yongju-hong/thrift,bforbis/thrift,nsuke/thrift,bforbis/thrift,apache/thrift,jeking3/thrift,yongju-hong/thrift,yongju-hong/thrift,jeking3/thrift,jeking3/thrift,Jens-G/thrift,yongju-hong/thrift,bforbis/thrift,Jens-G/thrift,apache/thrift,yongju-hong/thrift,nsuke/thrift,apache/thrift,strava/thrift,yongju-hong/thrift,jeking3/thrift,strava/thrift,nsuke/thrift,bforbis/thrift,Jens-G/thrift,Jens-G/thrift,strava/thrift,yongju-hong/thrift,Jens-G/thrift,Jens-G/thrift,strava/thrift,bforbis/thrift,Jens-G/thrift,jeking3/thrift,nsuke/thrift,strava/thrift,strava/thrift,bforbis/thrift,apache/thrift,strava/thrift,jeking3/thrift,yongju-hong/thrift,nsuke/thrift,jeking3/thrift,nsuke/thrift,apache/thrift,bforbis/thrift,bforbis/thrift,apache/thrift,nsuke/thrift,apache/thrift,Jens-G/thrift,nsuke/thrift,jeking3/thrift,apache/thrift,bforbis/thrift,jeking3/thrift,jeking3/thrift,strava/thrift,Jens-G/thrift,bforbis/thrift,nsuke/thrift,Jens-G/thrift,yongju-hong/thrift,nsuke/thrift,strava/thrift,yongju-hong/thrift,bforbis/thrift,apache/thrift,apache/thrift,Jens-G/thrift,Jens-G/thrift,Jens-G/thrift,jeking3/thrift,strava/thrift,bforbis/thrift,nsuke/thrift,Jens-G/thrift,Jens-G/thrift,yongju-hong/thrift,Jens-G/thrift,yongju-hong/thrift,apache/thrift,Jens-G/thrift,strava/thrift,jeking3/thrift,apache/thrift,yongju-hong/thrift,nsuke/thrift,yongju-hong/thrift,yongju-hong/thrift,Jens-G/thrift,strava/thrift,nsuke/thrift,yongju-hong/thrift,nsuke/thrift,strava/thrift,jeking3/thrift,jeking3/thrift,strava/thrift,bforbis/thrift,apache/thrift,nsuke/thrift,apache/thrift,bforbis/thrift,yongju-hong/thrift