PolicyEvent::Purging normalization

- converted put_or_update to put on general queue
- queuing directly into purge_by_date

app/models/policy_event/purging.rb

@@ -12,16 +12,6 @@ def purge_window_size
         ::Settings.policy_events.history.purge_window_size
       end
 
-      def purge_queue
-        MiqQueue.put_unless_exists(
-          :class_name  => name,
-          :method_name => "purge",
-          :role        => "event",
-          :queue_name  => "ems"
-        )
-      end
-      alias_method :purge_timer, :purge_queue
-
       def purge_scope(older_than)
         where(arel_table[:timestamp].lt(older_than))
       end

spec/models/policy_event/purging_spec.rb

@@ -1,30 +1,18 @@
 describe PolicyEvent do
   context "::Purging" do
-    context ".purge_queue" do
+    context ".purge_timer" do
       before do
         EvmSpecHelper.create_guid_miq_server_zone
       end
 
       it "with nothing in the queue" do
-        described_class.purge_queue
+        described_class.purge_timer
 
         q = MiqQueue.all
         expect(q.length).to eq(1)
         expect(q.first).to  have_attributes(
           :class_name  => described_class.name,
-          :method_name => "purge"
-        )
-      end
-
-      it "with item already in the queue" do
-        described_class.purge_queue
-        described_class.purge_queue
-
-        q = MiqQueue.all
-        expect(q.length).to eq(1)
-        expect(q.first).to  have_attributes(
-          :class_name  => described_class.name,
-          :method_name => "purge"
+          :method_name => "purge_by_date"
         )
       end
     end