Axe ap_get_virthost_addr(). This <address>[:port] parse routine

is not used anymore and it doesn't handle IPv6, so it is best to
drop it.  If/when mod_tls (Netware) is ported to 2.0 it can use
apr_parse_addr_port().


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@87354 13f79535-47bb-0310-9956-ffa450edef68