lib: Drop the version check from CFGParser

lib/parsing/CFGParser.py

@@ -100,7 +100,6 @@ class CFGParser ( Parser ):
 
     def __init__(self, input:TokenStream, output:TextIO = sys.stdout):
         super().__init__(input, output)
-        self.checkVersion("4.9.2")
         self._interp = ParserATNSimulator(self, self.atn, self.decisionsToDFA, self.sharedContextCache)
         self._predicates = None