make the alt_demo user during normal install

For testing reasons it's typically very useful to have a second non
admin user to cross check that it can't do a thing to the first
user. It was useful enough we always created it with tempest (though
we didn't always use it).

This makes devstack always create an alt_demo user, which is available
in occ as devstack-alt. This will help us unwind some of the keystone
v3 breaks with functional tests using keystone cli to build this
second user.

Change-Id: Iaaf02469180563e2d8c413fee0ee66ada2296cfa
diff --git a/extras.d/80-tempest.sh b/extras.d/80-tempest.sh
index 5e8da99..fcf79bd 100644
--- a/extras.d/80-tempest.sh
+++ b/extras.d/80-tempest.sh
@@ -9,7 +9,7 @@
         install_tempest
     elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
         # Tempest config must come after layer 2 services are running
-        create_tempest_accounts
+        :
     elif [[ "$1" == "stack" && "$2" == "extra" ]]; then
         echo_summary "Initializing Tempest"
         configure_tempest
@@ -28,4 +28,3 @@
         :
     fi
 fi
-