message: tools: remove V3_RESTRICTED_PATHS from validate_structure.py.
  Legacy artifact from v3alpha -> v3.
diff: @@ -17,12 +17,6 @@ V2_ONLY_PATHS = [
  'config/common/tap',
  ]
  -# These are trees that allow v3+ protos, but only a strict whitelist.
  -V3_RESTRICTED_PATHS = {
  - 'config/accesslog/v3': ['accesslog.proto'],
  - 'service/discovery/v3': ['ads.proto', 'discovery.proto'],
  -}
  -
  # These are the only legacy trees that we permit not to terminate with a versioned suffix.
  VERSIONLESS_PATHS = [
  'annotations',
  @@ -71,13 +65,6 @@ def ValidateProtoPath(proto_path):
  if str(proto_path).startswith(p):
  raise ValidationError('v3+ protos are not allowed in %s' % p)
  - # Validate v3 restricted paths.
  - for p in V3_RESTRICTED_PATHS:
  - if str(proto_path).startswith(p):
  - allowed_files = V3_RESTRICTED_PATHS[p]
  - if proto_path.name not in allowed_files:
  - raise ValidationError('Only %s allowed in %s' % (allowed_files, p))
  -
  # Validate a list of proto paths.
  def ValidateProtoPaths(proto_paths):
  