Explicitly prevent deletion processing in steps in which it doesn't make
sense.
diff --git a/planetstack/ec2_observer/steps/sync_deployments.py b/planetstack/ec2_observer/steps/sync_deployments.py
index 8a258f1..76eeb1f 100644
--- a/planetstack/ec2_observer/steps/sync_deployments.py
+++ b/planetstack/ec2_observer/steps/sync_deployments.py
@@ -10,6 +10,9 @@
     provides=[Deployment]
 
     def fetch_pending(self,deletion):
+        if (deletion):
+            return []
+
         deployments = Deployment.objects.filter(Q(name="Amazon EC2"))
         if (not deployments):
             deployments = [Deployment(name="Amazon EC2")]