remove stray comment

Author: themisvaltinos

sqlmesh/core/context.py

@@ -1536,7 +1536,6 @@ def invalidate_environment(self, name: str, sync: bool = False) -> None:
             name: The name of the environment to invalidate.
             sync: If True, the call blocks until the environment is deleted. Otherwise, the environment will
                 be deleted asynchronously by the janitor process.
-            protect_prod: If True, prevents invalidation of the production environment.
         """
         name = Environment.sanitize_name(name)
         self.state_sync.invalidate_environment(name)