axe the entry on graceful restart problems with worker

I was too stupid to read the code to determine that the accept mutex
failure log messages were harmless and not indicative of a real problem.

I'll try to understand the conditions where I'm seeing connections
dropped.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@93721 13f79535-47bb-0310-9956-ffa450edef68