Revert "Skip ServersTestBootFromVolume for Ironic"

no longer needed, Ironic is fully prepared for BFV tests

This reverts commit 160f3648130d22e75fae10fbf586460365b9b8ea.

Change-Id: I94f87d5af769a28b4d9bc65e2f8f91a9b7f4f61e
1 file changed