Apply suggestion from @chalmerlowe

Removes hidden whitespace for linting.

Author: chalmerlowe

packages/google-cloud-apiregistry/google/cloud/apiregistry_v1beta/types/resources.py

@@ -145,7 +145,6 @@ class McpTool(proto.Message):
             - openWorldHint: If true, the tool may
               interact with an "open world" of external
               entities.
-    
     """
 
     name: str = proto.Field(