chore: removing owlbot directives for conversion to main (#263)

.github/.OwlBot.lock.yaml

@@ -1,3 +1,3 @@
 docker:
   image: gcr.io/repo-automation-bots/owlbot-python:latest
-  digest: sha256:aea14a583128771ae8aefa364e1652f3c56070168ef31beb203534222d842b8b
+  digest: sha256:0ffe3bdd6c7159692df5f7744da74e5ef19966288a6bf76023e8e04e0c424d7d

owlbot.py

@@ -21,16 +21,4 @@
     r'value: "docs-staging-v2-staging"'
 )
 
-
-# Remove the replacements below once https://github.com/googleapis/synthtool/pull/1188 is merged
-
-# Update googleapis/repo-automation-bots repo to main in .kokoro/*.sh files
-s.replace(".kokoro/*.sh", "repo-automation-bots/tree/master", "repo-automation-bots/tree/main")
-
-s.replace(
-    "docs/conf.py",
-    "master_doc",
-    "root_doc",
-)
-
 s.shell.run(["nox", "-s", "blacken"], hide_output=False)