fcache: move code to filter_cache_request_abort(), filter_cache_request_release()
fcache: move code to filter_cache_request_abort(), filter_cache_request_release()

CM4all/beng-proxy,CM4all/beng-proxy,CM4all/beng-proxy,CM4all/beng-proxy,CM4all/beng-proxy,CM4all/beng-proxy