Remove dup stylelint depdendencies in webapp/channels (#27499)

NOTICE.txt

@@ -12173,41 +12173,6 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 
 
----
-
-## stylelint
-
-This product contains 'stylelint' by stylelint.
-
-A mighty CSS linter that helps you avoid errors and enforce conventions.
-
-* HOMEPAGE:
-  * https://stylelint.io
-
-* LICENSE: MIT
-
-The MIT License (MIT)
-
-Copyright (c) 2015 - present Maxime Thirouin, David Clark & Richard Hallows
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
 ---
 
 ## throttled/throttled

webapp/channels/package.json

@@ -93,7 +93,6 @@
     "smooth-scroll-into-view-if-needed": "1.1.33",
     "stream-browserify": "3.0.0",
     "styled-components": "5.3.6",
-    "stylelint": "13.13.1",
     "timezones.json": "1.6.1",
     "tinycolor2": "1.4.2",
     "turndown": "7.1.1",