Installation Guide improvements- cinder node section
Installation Guide improvements- cinder node section

1. Reordered instructions in the cinder node section
2. Removed openstack-config commands

Change-Id: I2d3ca22316fb8191ddb3c926211deb00be51e322
Implements: blueprint installation-guide-improvements

Akasurde/openstack-manuals,potsmaster/openstack-manuals,saeki-masaki/openstack-manuals,openstack/openstack-manuals,gongysh2004/openstack-manual,potsmaster/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,kairoaraujo/openstack-manuals,saeki-masaki/openstack-manuals,openstack/openstack-manuals,gongysh2004/openstack-manual,kairoaraujo/openstack-manuals,Akasurde/openstack-manuals