tests: more general supress condiction for ngx_stream_lua_socket_udp_send. (#239)

Author: zhuizhuhaomeng

valgrind.suppress

@@ -204,17 +204,4 @@
    fun:ngx_stream_lua_udp_sendmsg
    fun:ngx_stream_lua_socket_udp_send
    fun:lj_BC_FUNCC
-   fun:ngx_stream_lua_run_thread
-   fun:ngx_stream_lua_content_by_chunk
-   fun:ngx_stream_lua_content_handler_inline
-   fun:ngx_stream_lua_content_handler
-   fun:ngx_stream_core_content_phase
-   fun:ngx_stream_core_run_phases
-   fun:ngx_stream_session_handler
-   fun:ngx_stream_init_connection
-   fun:ngx_event_recvmsg
-   fun:ngx_epoll_process_events
-   fun:ngx_process_events_and_timers
-   fun:ngx_single_process_cycle
-   fun:main
 }