Remove const from ap_socket_t parameters on APR functions so that

APR can modify the ap_socket_t as it sees fit.  It may choose to
modify the ap_socket_t on functions which only read from the ap_socket_t
conceptually.

Note: http_connection::ap_new_apr_connection() passes its ap_socket_t
arg to one of the changed functions, so const was removed there also.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@85700 13f79535-47bb-0310-9956-ffa450edef68