chore: remove obsolete replacement in owlbot.py (#633)

* Remove owlbot.py workaround

I manually checked that search string no longer exists in the noxfile specified in the workaround

* Ping conventional commit bot

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* Remove blank line

* Fix to conform to canonical owlbot.py

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

noxfile.py

@@ -288,6 +288,7 @@ def docs(session):
     shutil.rmtree(os.path.join("docs", "_build"), ignore_errors=True)
     session.run(
         "sphinx-build",
+        "-W",  # warnings as errors
         "-T",  # show full traceback on exception
         "-N",  # no colors
         "-b",

owlbot.py

@@ -35,7 +35,6 @@
     if clean_up_generated_samples:
         shutil.rmtree("samples/generated_samples", ignore_errors=True)
         clean_up_generated_samples = False
-
     s.move([library], excludes=["**/gapic_version.py"])
 s.remove_staging_dirs()
 
@@ -52,14 +51,6 @@
 
 python.py_samples(skip_readmes=True)
 
-# Don't treat warnings as errors
-# Docstrings have unexpected idnentation and block quote formatting issues
-s.replace(
-    "noxfile.py",
-    '''["']-W["'],  # warnings as errors''',
-    "",
-)
-
 # run format session for all directories which have a noxfile
 for noxfile in Path(".").glob("**/noxfile.py"):
     s.shell.run(["nox", "-s", "format"], cwd=noxfile.parent, hide_output=False)