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Remove useless comment.

diff --git a/states.py b/states.py
--- a/states.py
+++ b/states.py
@@ -103,10 +103,6 @@ context.changectx.state = state
 def showstate(ctx, **args):
     return ctx.state()
 
-# New revset predicate
-#############################
-
-
 
 # New commands
 #############################