Explicitly prevent deletion processing in steps in which it doesn't make
sense.
diff --git a/planetstack/ec2_observer/steps/sync_users.py b/planetstack/ec2_observer/steps/sync_users.py
index d742186..030e360 100644
--- a/planetstack/ec2_observer/steps/sync_users.py
+++ b/planetstack/ec2_observer/steps/sync_users.py
@@ -16,6 +16,9 @@
 	requested_interval=0
 
 	def fetch_pending(self, deletion):
+        if (deletion):
+            return []
+
 		users = User.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None))
 		if (users):
 			key_sig = aws_run('ec2 describe-key-pairs')