Remove Glance v1 APIs tests

Glance v1 APIs were removed in Rocky and tempest master
does not support the Rocky release. If glance v1 APIs
needs to be tested for older release then older Tempest
can be used.

This removes the Glance v1 APIs tests, config option,
and its service clients.

Change-Id: I6741e2204de251ee8f16b0249a73bee5912c1135
27 files changed