Revert "labels: add backport label for automatic browser updates"

This reverts commit 189dd476d4.

.github/labeler-no-sync.yml

@@ -28,38 +28,5 @@
       - any-glob-to-any-file:
         - .github/workflows/*
         - ci/**/*.*
-  - all:
-    - head-branch:
-      # r-ryantm's branches have this prefix.
-      - ^auto-update/
-    - changed-files:
-      - any-glob-to-any-file:
-        # Browser updates should always be backported.
-        - pkgs/applications/kde/angelfish.nix
-        - pkgs/applications/kde/falkon.nix
-        - pkgs/applications/kde/konqueror.nix
-        - pkgs/applications/networking/browsers/**/*
-        - pkgs/by-name/br/brave/**/*
-        # Added in December 2024, uncomment for 25.05
-        # - pkgs/by-name/ca/catalyst-browser/**/*
-        - pkgs/by-name/ch/chawan/**/*
-        - pkgs/by-name/di/dillo-plus/**/*
-        - pkgs/by-name/di/dillo/**/*
-        - pkgs/by-name/ed/edbrowse/**/*
-        - pkgs/by-name/ep/epiphany/**/*
-        - pkgs/by-name/go/google-chrome/**/*
-        - pkgs/by-name/ly/lynx/**/*
-        - pkgs/by-name/mi/microsoft-edge/**/*
-        - pkgs/by-name/mi/midori-unwrapped/**/*
-        - pkgs/by-name/mu/mullvad-browser/**/*
-        - pkgs/by-name/op/opera/**/*
-        - pkgs/by-name/to/tor-browser/**/*
-        - pkgs/by-name/vi/vimb-unwrapped/**/*
-        - pkgs/by-name/w3/w3m/**/*
-        - pkgs/desktops/lomiri/applications/morph-browser/**/*
-        - pkgs/development/libraries/webkitgtk/**/*
-        - pkgs/kde/gear/angelfish/**/*
-        - pkgs/kde/gear/falkon/**/*
-        - pkgs/kde/gear/konqueror/**/*
 
 # keep-sorted end