Remove training-guide from translated guides
Remove training-guide from translated guides

training guide is still WIP, not ready for translation yet

Change-Id: I653fa995528a0a6992862395515fde2e73a397e8

openstack/openstack-doc-tools,savinash47/openstack-doc-tools,openstack/openstack-doc-tools,savinash47/openstack-doc-tools,savinash47/openstack-doc-tools