Remove __main__ functionality from parser.py.

It was only there as scaffolding.

parser.py

@@ -493,15 +493,3 @@ class LLVMParser(object):
 
         """
         return self.parser.parse(text, lexer=self.lexer)
-
-
-if __name__ == '__main__':
-    p = LLVMParser()
-    p.build()
-    data = r'''
-define void @tigermain (i64 %U_mainSL_8, i64 %U_mainDummy_9) {
- %a = add i64 3, 5 ; please be 8
- ret i64 %a
-}
-    '''
-    print(p.parse(data))