Remove code for skipping autoscale test
Remove code for skipping autoscale test

Since we are introduced deployment tag for this test
we do not need to skip test_autoscaling by code

Change-Id: I7ec7309e3445e52fe58f27da98474f23ee791bd4
Closes-bug:#1513824

eayunstack/fuel-ostf,stackforge/fuel-ostf,stackforge/fuel-ostf,eayunstack/fuel-ostf