Manual:$wgFeed

Feed: $wgFeed
Toggle syndication feeds (RSS, Atom e.g. Recentchanges, Newpages) on and off.
Introduced in version:	1.13.0 (r31184)
Removed in version:	Still in use
Allowed values:	(boolean)
Default value:	`true`
Other settings: Alphabetical \| By function

Details

Wikis which do not want to use syndication feeds can turn them off by adding $wgFeed = false; to the LocalSettings.php file.