fix: remove unnecessary grpc check in test_client_cert.py

Author: hebaalazzeh

packages/google-api-core/tests/unit/gapic/test_client_cert.py

@@ -18,13 +18,6 @@
 
 import pytest
 
-# We need to skip this test module if grpc is not installed because importing
-# gapic_v1._client_cert will load gapic_v1/__init__, which unconditionally
-# imports gapic_v1.config, which imports grpc.
-try:
-    import grpc  # noqa: F401
-except ImportError:
-    pytest.skip("No GRPC", allow_module_level=True)
 
 from google.api_core.gapic_v1._client_cert import (
     _get_client_cert_source,