fix(auth): remove unnecessary pragma no cover annotations

Author: nypdmax

src/mcp/client/auth/utils.py

@@ -337,7 +337,7 @@ async def handle_auth_metadata_response(response: Response) -> tuple[bool, OAuth
             content = await response.aread()
             asm = OAuthMetadata.model_validate_json(content)
             return True, asm
-        except ValidationError:  # pragma: no cover
+        except ValidationError:
             return True, None
     elif response.status_code < 400 or response.status_code >= 500:
         return False, None  # Non-4XX error, stop trying

tests/client/test_auth.py

@@ -44,7 +44,7 @@ def __init__(self):
         self._client_info: OAuthClientInformationFull | None = None
 
     async def get_tokens(self) -> OAuthToken | None:
-        return self._tokens  # pragma: no cover
+        return self._tokens
 
     async def set_tokens(self, tokens: OAuthToken) -> None:
         self._tokens = tokens