Revert "Assert metrics using metadata"

This reverts commit 2c38338.

mcache/tests/test_integration_e2e.py

@@ -5,7 +5,6 @@
 
 from datadog_checks.mcache import Memcache
 
-from datadog_checks.dev.utils import get_metadata_metrics
 from .common import HOST, PORT, SERVICE_CHECK, requires_socket_support, requires_unix_utils
 from .metrics import GAUGES, ITEMS_GAUGES, ITEMS_RATES, RATES, SLABS_AGGREGATES, SLABS_GAUGES, SLABS_RATES
 from .utils import count_connections, get_host_socket_path
@@ -24,7 +23,6 @@ def assert_check_coverage(aggregator):
         aggregator.assert_metric(m, tags=expected_tags)
 
     aggregator.assert_all_metrics_covered()
-    aggregator.assert_metrics_using_metadata(get_metadata_metrics())
 
 
 @pytest.mark.e2e