starter: Don't flush SAs in the kernel

If starter is not used we don't do that either. And this allows us to
move the stuff in libhydra back to libcharon.

src/starter/starter.c

@@ -703,7 +703,6 @@ int main (int argc, char **argv)
 			{
 				starter_stop_charon();
 			}
-			starter_netkey_cleanup();
 			confread_free(cfg);
 			unlink(starter_pid_file);
 			cleanup();