chore: disable gencode updates for iam-v1 (#13868)

Author: ohmayr

packages/grpc-google-iam-v1/.OwlBot.yaml

@@ -15,10 +15,5 @@
 
 deep-remove-regex:
   - /owl-bot-staging
-deep-copy-regex:
-  - source: /google/iam/(v1)/.*-v1-py/(.*policy.*|options.*)
-    dest: /owl-bot-staging/grpc-google-iam-v1/$1/google/iam/v1/$2
-  - source: /google/iam/v1/logging/(audit-data-py)/(.*audit_data.*)
-    dest: /owl-bot-staging/grpc-google-iam-v1/$1/google/iam/v1/logging/$2
 
 begin-after-commit-hash: 70f7f0525414fe4dfeb2fc2e81546b073f83a621