docs: v2.2.0-beta.3 changes

Author: amatya-aditya

docs/releases/2.2.0-beta.3.md

@@ -24,7 +24,6 @@
 #### Reader Experience
 
 - Improved reader fallback: when full-page extraction is weak/empty, reader now falls back to feed-provided HTML (`content`/`description`)
-- Added Kagi-specific handling (`kite.kagi.com` / `news.kagi.com`) so embedded feed content renders directly in Reader view
 - Added a collapsible **Feed description** callout block in Reader view (expanded by default)
 - Removed the separate top cover image block so reader content starts immediately with article text