This reverts commit 34a505db5c.
The package is not in the Cloud install root at present so this
change made the image compose fail. This can be re-applied if
the package is added to an appropriate comps group.
It gets installed at box launch time anyway. Save users the
annoyance of having to wait. This is in line with the Atomic
Vagrant images as well, which contain rsync in the composed tree.