libweston/launcher-direct.c: do not fail if already in graphics mode

In case of a crash tty remains in graphic mode. This change allows to restart weston without
taking care of the actual tty mode.

Signed-off-by: ahe <Andreas.Heynig@meetwise.com>

libweston/launcher-direct.c

@@ -160,7 +160,6 @@ setup_tty(struct launcher_direct *launcher, int tty)
 	if (kd_mode != KD_TEXT) {
 		weston_log("%s is already in graphics mode, "
 			   "is another display server running?\n", tty_device);
-		goto err_close;
 	}
 
 	ioctl(launcher->tty, VT_ACTIVATE, minor(buf.st_rdev));