Merge pull request #1189 from soltanmm/remove-semicolons

src/python/src/grpc/_adapter/_call.c

src/python/src/grpc/_adapter/_call.h

src/python/src/grpc/_adapter/_channel.h

src/python/src/grpc/_adapter/_client_credentials.h

src/python/src/grpc/_adapter/_completion_queue.c

src/python/src/grpc/_adapter/_completion_queue.h

src/python/src/grpc/_adapter/_server.h

src/python/src/grpc/_adapter/_server_credentials.h