Remove deprecated version dependencies in quickstart
Remove deprecated version dependencies in quickstart

Mitaka and newton are deprecated and no longer maintained
by OpenStack comunity.

Users can check specific documentation for old releases.

Change-Id: I43fd1d40bc2f094fee4c1547879f798a92593df4

dardelean/kolla-ansible,dardelean/kolla-ansible,dardelean/kolla-ansible