skypiax: undeffing FARMING modifications, they're experinmantal

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12832 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_skypiax/skypiax_protocol.c

 #include "skypiax.h"
 
-#define FARMING
+#undef FARMING
 
 #ifdef ASTERISK
 #define skypiax_sleep usleep