Remove redundant assignments in mainLoop

test_parser.py still reports the same number of fails (9)

http://code.google.com/p/html5lib/issues/detail?id=177

Author: foolip

html5lib/html5parser.py

@@ -152,18 +152,6 @@ def reset(self):
         self.framesetOK = True
 
     def mainLoop(self):
-        (CharactersToken, 
-         SpaceCharactersToken, 
-         StartTagToken,
-         EndTagToken, 
-         CommentToken,
-         DoctypeToken) = (tokenTypes["Characters"],
-                          tokenTypes["SpaceCharacters"],
-                          tokenTypes["StartTag"],
-                          tokenTypes["EndTag"],
-                          tokenTypes["Comment"],
-                          tokenTypes["Doctype"])
-
         CharactersToken = tokenTypes["Characters"]
         SpaceCharactersToken = tokenTypes["SpaceCharacters"]
         StartTagToken = tokenTypes["StartTag"]