Update pom.xml
Update pom.xml

Properly setup profiling so that the guide is only build for Ubuntu and
not all distros together.

Disable commenting, it's not in use for training-guides.

Change-Id: Idc443d9fbcb75451db0d8a1f80fac75b37678843

harrisonfeng/training-guides,harrisonfeng/training-guides,Nabs007/training-guides,Nabs007/training-guides,harrisonfeng/training-guides,openstack/training-guides,openstack/training-guides,Nabs007/training-guides