Remove the install_transport_filters hook. The same function can be

acheived with the pre_connection hook.  I have added the socket to the
pre_connection phase to make this possible.
Reviewed by:	Bill Stoddard


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@93259 13f79535-47bb-0310-9956-ffa450edef68