Update for_helpers.py

Author: BobTheBuidler

mypyc/irbuild/for_helpers.py

@@ -1209,8 +1209,6 @@ def begin_body(self) -> None:
         else:
             fake_call_expr = CallExpr(self.filter_func_def, [self.index], [ARG_POS], [None])
 
-            builder.types[fake_call_expr] = builder.types[self.index]
-
             # I put this here to prevent a circular import
             from mypyc.irbuild.expression import transform_call_expr