Remove IOLs from Apache. They are no longer necessary, now that we have

filtering beginning to work.  There is a hack that has been repeated
through this patch, we morph a pipe into a socket, and put the socket
into the BUFF.  Everytime we do that, we are working with a pipe from
a CGI, and we should be creating a pipe bucket and passing that bucket
back.  Because we don't actually have pipe buckets yet, we are using this
hack.  When we get pipe buckets, this will be fixed.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86136 13f79535-47bb-0310-9956-ffa450edef68