Merge "Remove confusing docs"

doc/source/user/quickstart.rst

@@ -402,23 +402,6 @@ There are a few options that are required to deploy Kolla-Ansible:
 
      kolla_install_type: "source"
 
-  To use DockerHub images, the default image tag has to be overridden. Images are
-  tagged with release names. For example to use stable Train images set
-
-  .. code-block:: console
-
-     openstack_release: "train"
-
-  It's important to use same version of images as kolla-ansible. That
-  means if pip was used to install kolla-ansible, that means it's latest stable
-  version so ``openstack_release`` should be set to train. If git was used with
-  master branch, DockerHub also provides daily builds of master branch (which is
-  tagged as ``master``):
-
-  .. code-block:: console
-
-     openstack_release: "master"
-
 * Networking
 
   Kolla-Ansible requires a few networking options to be set.
@@ -582,4 +565,3 @@ Using OpenStack
      .. code-block:: console
 
         kolla-ansible/tools/init-runonce
-