Removed the warning from the ip groups guide about the effect of the new

search optimization feture that was no longer true. #10554

Author: landreev

doc/sphinx-guides/source/admin/ip-groups.rst

@@ -42,7 +42,3 @@ To delete an IP Group with an alias of "ipGroup1", use the curl command below:
 
 ``curl -X DELETE http://localhost:8080/api/admin/groups/ip/ipGroup1``
 
-Related Settings
-----------------
-
-Be aware that enabling the feature flag ``avoid-expensive-solr-join`` will effectively prevent collection, datasets, and files from being found by members of IP Groups when searching, rendering IP Groups much less useful. See :ref:`feature-flags` in the Installation Guide for details.