Revert "Add pointer-events:none to disabled pager/pagination"

This reverts commit a217db1923.
This reverts PR #18700
See the discussion in the comments on that commit.

[skip sauce]

less/pager.less

@@ -49,7 +49,6 @@
       color: @pager-disabled-color;
       background-color: @pager-bg;
       cursor: @cursor-disabled;
-      pointer-events: none; // Future-proof disabling of clicks on `<a>` elements
     }
   }
 }

less/pagination.less

@@ -71,7 +71,6 @@
       background-color: @pagination-disabled-bg;
       border-color: @pagination-disabled-border;
       cursor: @cursor-disabled;
-      pointer-events: none; // Future-proof disabling of clicks on `<a>` elements
     }
   }
 }