Revert r1299786, which is already covered elsewhere in the same document:
document that ap_mpm_query is available only after register hooks
PR: 52889
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@
1302678 13f79535-47bb-0310-9956-
ffa450edef68
<p><code>ap_mpm_run</code> is replaced by a new <code>mpm</code> hook.
Also <code>ap_graceful_stop_signalled</code> is lost, and
<code>ap_mpm_register_timed_callback</code> is new.</p>
- <p><code>ap_mpm_query</code> is not longer available in the register hooks
- phase during startup.</p>
</section>
<section id="ap_regex">