SEBA-497 delayering, Makefile, and tox for simpleexampleservice

Change-Id: If4d5895ad598e4861cf3d931d94d7e4cf56752e3
diff --git a/xos/synchronizer/event_steps/simpleexampleevent.py b/xos/synchronizer/event_steps/simpleexampleevent.py
index 07374b9..b544d1a 100644
--- a/xos/synchronizer/event_steps/simpleexampleevent.py
+++ b/xos/synchronizer/event_steps/simpleexampleevent.py
@@ -15,14 +15,13 @@
 
 
 import json
-import os
-import sys
 from xossynchronizer.event_steps.eventstep import EventStep
 from xosconfig import Config
 from multistructlog import create_logger
 
 log = create_logger(Config().get('logging'))
 
+
 class SimpleExampleEventStep(EventStep):
     topics = ["SimpleExampleEvent"]
     technology = "kafka"
@@ -41,4 +40,4 @@
 
         for obj in objs:
             obj.tenant_message = tenant_message
-            obj.save(always_update_timestamp = True)
+            obj.save(always_update_timestamp=True)