[ggj] chore(build, engx): Check license only on src/ files in pre-commit (#711)
[ggj] chore(build, engx): Check license only on src/ files in pre-commit (#711)

* chore(engx): Remove obsolete TODOs in codegen src

* chore(build, engx): Check license only on src/ files in pre-commit
googleapis/gapic-generator-java,googleapis/gapic-generator-java