Testconfig: Removing OpenSuSE 13.1 stage for now

Those nodes are not working properly so removing the stage from
most jobs. Leaving only for QtWayland while there is no other
stage configured for that job.

Change-Id: Ic5b189c2717eb5b8d1550554a9a2bc6425b2028a
Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>