Remove all pthreads calls from the mpmt MPM prefork emulation. This makes

the mpmt MPM look almost exactly like the original prefork MPM.  Basically,
all that's left is re-naming the defined directives so they work with 1.3
config files.  That will come later.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@85819 13f79535-47bb-0310-9956-ffa450edef68