`show_multiple_locations` default was removed.

  * Revealing image locations can present a GRAVE SECURITY RISK as
    image locations can sometimes include credentials. Hence, this
    is set to ``False`` by default. Set this to ``True`` with
    EXTREME CAUTION and ONLY IF you know what you are doing!

Change-Id: I0574e95c7bcaea316edad07469e4d6b8e007da9a
Related-Prod: PROD-28990
(cherry picked from commit b0fa740de56c7d42b3ce3e61112c479813e28080)
diff --git a/glance/control/cluster.yml b/glance/control/cluster.yml
index a75f8c5..3eb7866 100644
--- a/glance/control/cluster.yml
+++ b/glance/control/cluster.yml
@@ -82,4 +82,3 @@
       storage:
         engine: file
       images: []
-      show_multiple_locations: True
diff --git a/glance/control/single.yml b/glance/control/single.yml
index ee2ae1a..24e9c3f 100644
--- a/glance/control/single.yml
+++ b/glance/control/single.yml
@@ -31,7 +31,6 @@
         protocol: ${_param:internal_protocol}
       registry:
         protocol: ${_param:internal_protocol}
-      show_multiple_locations: True
       barbican:
         enabled: ${_param:barbican_integration_enabled}
       message_queue: