Modify import tests to only test importing from unversioned schema.
Modify import tests to only test importing from unversioned schema.

DXCanas/kolibri,jonboiser/kolibri,jonboiser/kolibri,DXCanas/kolibri,benjaoming/kolibri,christianmemije/kolibri,lyw07/kolibri,indirectlylit/kolibri,lyw07/kolibri,benjaoming/kolibri,mrpau/kolibri,jonboiser/kolibri,learningequality/kolibri,christianmemije/kolibri,indirectlylit/kolibri,lyw07/kolibri,learningequality/kolibri,christianmemije/kolibri,mrpau/kolibri,indirectlylit/kolibri,benjaoming/kolibri,indirectlylit/kolibri,jonboiser/kolibri,mrpau/kolibri,benjaoming/kolibri,mrpau/kolibri,lyw07/kolibri,DXCanas/kolibri,learningequality/kolibri,DXCanas/kolibri,learningequality/kolibri,christianmemije/kolibri