Complete deletion of protoc-gen-buf-check-breaking and protoc-gen-buf-check-lint

[bufdev]

Complete deletion protoc-gen-buf-check-breaking and protoc-gen-buf-check-lint, which have been moved to protoc-gen-buf-breaking and protoc-gen-buf-lint.

In January 2021, protoc-gen-buf-check-breaking and protoc-gen-buf-check-lint were deprecated and scheduled for removal for v1.0. In August 2021, we began returning error for every invocation of protoc-gen-buf-check-breaking and protoc-gen-buf-check-lint. As v1.0 is imminent, this release completes the deletion process.

The only migration necessary is to change your installation and invocation from protoc-gen-buf-check-breaking to protoc-gen-buf-breaking and protoc-gen-buf-check-lint to protoc-gen-buf-lint. These can be installed in the exact same manner, whether from GitHub Releases, Homebrew, AUR, or direct Go installation:

# instead of go get github.com/bufbuild/buf/cmd/protoc-gen-buf-check-breaking
go get github.com/bufbuild/buf/cmd/protoc-gen-buf-breaking
# instead of curl -sSL https://github.com/bufbuild/buf/releases/download/v0.57.0/protoc-gen-buf-check-breaking-Linux-x86_64
curl -sSL https://github.com/bufbuild/buf/releases/download/v0.57.0/protoc-gen-buf-breaking-Linux-x86_64

There is no change in functionality.