Fix Channels.py syntax error broken with the last commit

Change-Id: I4bf0486d5b1c974e7e4c22b3835db37124ce1ee4
diff --git a/src/test/utils/Channels.py b/src/test/utils/Channels.py
index 83706b3..0d50442 100644
--- a/src/test/utils/Channels.py
+++ b/src/test/utils/Channels.py
@@ -230,9 +230,6 @@
         else:
             leave = chan - 1
             join = chan
-        else:
-            leave = 0
-            join = 0
 
         if join >= self.num:
             join = 0