Place the "[subscribe]" links used when the 'VISUALENHANCEMENTS'
feature is disabled in the same DOM position as the "🔔 Subscribe"
buttons used when it is enabled.
Recent changes in MediaWiki core caused them to move inside the
`<span class="mw-headline">`, breaking some gadgets (T13555#9615648).
Moving them all the way outside should avoid problems.
I don't remember why we placed them inside the `<h2>` tags, but there
doesn't seem to be any reason to do it now. It must have been easier
that way before we introduced the `<div class="mw-heading">` wrappers.
Note that I'm keeping the `<!--__DTSUBSCRIBELINK__...-->` placeholder
comments in case it turns out there is a reason, and we need to revert
this change. If everything goes well, they can be cleaned up in change
Ie3348671c486de5bbd9f286772a8d145e3609bd5 later.
Bug: T13555
Change-Id: Idb23b0f5e438d35ed74569ff50302c7fad5ba688
We no longer need to support toggling visual enhancements without
reloading the page, so we can remove the extraneous set of buttons
to reduce HTML size.
Bug: T322457
Change-Id: I54e57c754c54b7e611069f9832d1ebabf141a396