Add QtMacExtras_stable to Jenkins

Change-Id: I69796377f9cc078330782b30597ba0c86be616a3
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Remove unused CI configurations

These modules don't have a 'master' branch anymore.

Change-Id: I73676192db4e4c82d253e695766e1e8ffb2f2d68
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>