Remove show_image_direct_url for ceph plugin
Remove show_image_direct_url for ceph plugin

To fix it we change the default param to True.
'show_image_direct_url' will be overridden.
Currently glance v2 doesn't allow to specify custom
locations for image by default, it returns 403.


Closes-Bug: #1740223

Related to https://review.openstack.org/#/c/279630/2

Change-Id: Ib4dd54c69830ab8f3f9812877b026f81c23c224a

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