Remove older note

Author: nbarbettini

docs/specification/draft/client/elicitation.mdx

@@ -388,11 +388,6 @@ of band and the client is not aware of the outcome until and unless the server s
 
 ### Completion Notifications for URL Mode Elicitation
 
-<Note>
-  **Experimental**: This mechanism to notify clients of completed out-of-band
-  interactions could change or be removed in upcoming specification releases.
-</Note>
-
 Servers **MAY** send a `notifications/elicitation/complete` notification when an
 out-of-band interaction started by URL mode elicitation is completed. This allows clients to react programmatically if appropriate.