Remove autoscaling test that is now a functional test
Remove autoscaling test that is now a functional test

This is now logically here:
https://github.com/openstack/heat/blob/master/heat_integrationtests/functional/test_autoscaling.py#L187-L215

part of blueprint decouple-nested

Change-Id: I9848b3b322e0baa0e9a2b1661d40cb1411c2bea8

jasondunsmore/heat,cwolferh/heat-scratch,cryptickp/heat,miguelgrinberg/heat,pratikmallya/heat,pshchelo/heat,dragorosson/heat,dims/heat,noironetworks/heat,srznew/heat,cryptickp/heat,miguelgrinberg/heat,dims/heat,gonzolino/heat,rdo-management/heat,dragorosson/heat,jasondunsmore/heat,openstack/heat,noironetworks/heat,openstack/heat,rh-s/heat,pratikmallya/heat,takeshineshiro/heat,steveb/heat,maestro-hybrid-cloud/heat,rdo-management/heat,takeshineshiro/heat,srznew/heat,gonzolino/heat,maestro-hybrid-cloud/heat,rh-s/heat,cwolferh/heat-scratch,pshchelo/heat,steveb/heat