Make OS/2 CGI kill() change a bit cleaner by defining ap_os_kill() == kill()

on all other platforms, making it possible to remove the #ifdef from the
code.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@83151 13f79535-47bb-0310-9956-ffa450edef68