Remove unnecessary CLI options from roles

Overrides auth.admin_password and identity.uri are no longer
needed.

Change-Id: Iaa1f5bdd017ef443bf063fdd57c9cfdff75e9613

roles/generate-tempestconf-file/tasks/generate-tempestconf.sh.j2

@@ -17,6 +17,4 @@ discover-tempest-config \
 {% elif test_demo_user and create_accounts_file %}
 --create-accounts-file ./etc/accounts.yaml \
 {% endif %}
-identity.uri $OS_AUTH_URL \
-auth.admin_password $OS_PASSWORD \
 {{ aditional_tempestconf_params }}