Revert "Fail when expected files are not produced by protoc (#4287)" #4324
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What type of PR is this?
Bug fix
What does this PR do? Why is it needed?
It's common for a
go_proto_library
to include proto files with and without service definitions at the same time. In this case, the gRPC plugins are needed, but some gRPC plugins don't generate the grpc.pb.go files if there is no service definition.Partially reverting #4287 to restore the previous behavior of creating an empty file
Which issues(s) does this PR fix?
Fixes #4317
Other notes for review