HostMetricSummaryMonthly API commented out

awx/api/templates/api/host_metric_summary_monthly_list.md

@@ -1,12 +0,0 @@
-# Intended Use Case
-
-To get summaries from a certain day or earlier, you can filter this
-endpoint in the following way.
-
-    ?date__gte=2023-01-01
-
-This will return summaries that were produced on that date or later.
-These host metric monthly summaries should be automatically produced
-by a background task that runs once each month.
-
-{% include "api/list_api_view.md" %}