Do not enforce glance_control_exchange

The default glance_control_exchange in Ceilometer has been changed
from 'glance_notifications' to 'glance' in grizzly-2. Glance always
had 'glance' for its control_exchange.

This was a bug in Ceilometer and puppet-ceilometer patched it.
It shouldn't anymore.

Change-Id: I217515c91f092fb3e8039dde2d14a7ab4cbb7245
Closes-bug: #1273878

Author: mgagne

manifests/init.pp

@@ -182,9 +182,6 @@
     'DEFAULT/debug'                  : value => $debug;
     'DEFAULT/log_dir'                : value => $log_dir;
     'DEFAULT/verbose'                : value => $verbose;
-    # Fix a bad default value in ceilometer.
-    # Fixed in https://review.openstack.org/#/c/18487/
-    'DEFAULT/glance_control_exchange': value => 'glance';
     'DEFAULT/notification_topics'    : value => 'notifications';
   }
 

spec/classes/ceilometer_init_spec.rb

@@ -144,10 +144,6 @@
       it { should contain_ceilometer_config('DEFAULT/syslog_log_facility').with_value('LOG_LOCAL0') }
     end
 
-    it 'fixes a bad value in ceilometer (glance_control_exchange)' do
-      should contain_ceilometer_config('DEFAULT/glance_control_exchange').with_value('glance')
-    end
-
     it 'configures notification_topics' do
       should contain_ceilometer_config('DEFAULT/notification_topics').with_value('notifications')
     end