Minor bug fixes after major refactor

- Rest driver doesn't use pexpect so no self.handle is needed
- Fixed a typo
- Correctly handle empty body when DELETEing an app in the rest driver

Change-Id: I99c2a873af2a3e8a052144c2c1c79c50141f420a
diff --git a/TestON/tests/HA/dependencies/HA.py b/TestON/tests/HA/dependencies/HA.py
index d44f636..631ba2a 100644
--- a/TestON/tests/HA/dependencies/HA.py
+++ b/TestON/tests/HA/dependencies/HA.py
@@ -2911,7 +2911,7 @@
 
         if intentsResults and not consistentIntents:
             for i in range( len( main.Cluster.active() ) ):
-                ctrl = main.Cluster.contoller[ i ]
+                ctrl = main.Cluster.controllers[ i ]
                 main.log.warn( ctrl.name + " intents: " )
                 main.log.warn( json.dumps(
                     json.loads( ONOSIntents[ i ] ),