Merge pull request #20356 from twbs/revert-18700

Revert #18700 but discourage using <a>s for disabled pagination items

docs/_includes/components/pagination.html

@@ -77,7 +77,7 @@
   </ul>
 </nav>
 {% endhighlight %}
-  <p>You can optionally swap out active or disabled anchors for <code>&lt;span&gt;</code>, or omit the anchor in the case of the previous/next arrows, to remove click functionality while retaining intended styles.</p>
+  <p>We recommend that you swap out active or disabled anchors for <code>&lt;span&gt;</code>, or omit the anchor in the case of the previous/next arrows, to remove click functionality while retaining intended styles.</p>
 {% highlight html %}
 <nav aria-label="...">
   <ul class="pagination">

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
     }
   }
 }