Don't pretend r1807318 is merged in 100-continue proposal.

This commit was merged to help with conflicts only, it's finally a noop
for the final result. Since it refences an unmerged issue, it rather be
merged/recorded in PR 59007's context.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1853573 13f79535-47bb-0310-9956-ffa450edef68