Remove site-support banner from LaunchDarkly README

Site-support banners should be managed centrally in the documentation
repo's params.yaml (unsupported_sites), not inline in integration
README files. A corresponding PR in DataDog/documentation will add
the unsupported_sites entry.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hestonhoffman

launchdarkly/README.md

@@ -2,12 +2,6 @@
 
 ## Overview
 
-<!-- partial
-{{% site-region region="gov,gov2" %}}
-**The LaunchDarkly integration is not supported for the Datadog {{< region-param key="dd_site_name" >}} site**.
-{{% /site-region %}}
-partial -->
-
 LaunchDarkly provides the following integrations with Datadog:
 
 ### Events integration