Removal of deprecated command and deprecated optional argument

lib/tempest uses 'tempest-account-generator'
which is deprecated 4 years back.
In addition to above, lib/tempest also uses
'os-tenant-name' which is also deprecated.

Use of 'tempest account-generator' and
'os-project-name' should be done now.

Signed-off by: Soniya Vyas<svyas@redhat.com>
Change-Id: I624e1dc57a3d3533322fb298c01f70241d0400ed
1 file changed