fix: Remove dublicated test case (#31)

* fix: Remove duplicated test case
---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: ZPascal

docs/coverage.svg

@@ -533,16 +533,6 @@ def test_disable_datasource_cache_no_valid_result(self, call_the_api_mock):
         with self.assertRaises(Exception):
             datasource.disable_datasource_cache("test")
 
-    @patch("grafana_api.api.Api.call_the_api")
-    def test_enable_datasource_cache_no_valid_result(self, call_the_api_mock):
-        model: APIModel = APIModel(host=MagicMock(), token=MagicMock())
-        datasource: DatasourceQueryResourceCaching = DatasourceQueryResourceCaching(grafana_api_model=model)
-
-        call_the_api_mock.return_value = dict()
-
-        with self.assertRaises(Exception):
-            datasource.enable_datasource_cache("test")
-
     @patch("grafana_api.api.Api.call_the_api")
     def test_clean_datasource_cache(self, call_the_api_mock):
         model: APIModel = APIModel(host=MagicMock(), token=MagicMock())