Revert "Placeholder for transitions reset to prevent code duplication #29862"

This reverts commit cd7e5d1111.

Co-authored-by: Martijn Cuppens <martijn.cuppens@gmail.com>

site/assets/scss/docs.scss

@@ -51,12 +51,3 @@
 @import "syntax";
 @import "anchor";
 @import "algolia";
-
-@if $enable-prefers-reduced-motion-media-query {
-  @media (prefers-reduced-motion: reduce) {
-    %no-transition {
-      // stylelint-disable-next-line property-blacklist, declaration-no-important
-      transition: none !important;
-    }
-  }
-}