remove static 10 second sleep before checking instance status
remove static 10 second sleep before checking instance status

The earlier patch to make the startup checks more robust makes the
10 second sleeps here unnecessary and wasteful.

jmcabandara/imagefactory,LalatenduMohanty/imagefactory,henrysher/imagefactory,redhat-imaging/imagefactory,jmcabandara/imagefactory,redhat-imaging/imagefactory,henrysher/imagefactory,LalatenduMohanty/imagefactory