Remove [no-mentions] handler in our triagebot config

https://github.blog/changelog/2025-11-07-removing-notifications-for-mentions-in-commit-messages/

Author: Urgau

triagebot.toml

@@ -22,9 +22,6 @@ allow-unauthenticated = [
 [mentions."clippy_lints/src/doc"]
 cc = ["@notriddle"]
 
-# Prevents mentions in commits to avoid users being spammed
-[no-mentions]
-
 # Have rustbot inform users about the *No Merge Policy*
 [no-merges]
 exclude_titles = ["Rustup"] # exclude syncs from rust-lang/rust