Remove custom example plugin. (#25784)

docs/4.0/components/tooltips.md

@@ -117,11 +117,12 @@ Additionally, do not rely solely on `hover` as the trigger for your tooltip, as
 Elements with the `disabled` attribute aren't interactive, meaning users cannot focus, hover, or click them to trigger a tooltip (or popover). As a workaround, you'll want to trigger the tooltip from a wrapper `<div>` or `<span>`, ideally made keyboard-focusable using `tabindex="0"`, and override the `pointer-events` on the disabled element.
 
 <div class="tooltip-demo">
-{% example html %}
+{% capture example %}
 <span class="d-inline-block" tabindex="0" data-toggle="tooltip" title="Disabled tooltip">
   <button class="btn btn-primary" style="pointer-events: none;" type="button" disabled>Disabled button</button>
 </span>
-{% endexample %}
+{% endcapture %}
+{% include example.html content=example %}
 </div>
 
 ### Options