Remove unused code

pysr/export_torch.py

@@ -1,12 +1,6 @@
 import collections as co
-import functools as ft
 import sympy
 
-def _reduce(fn):
-    def fn_(*args):
-        return ft.reduce(fn, args)
-    return fn_
-
 torch_initialized = False
 torch = None
 sympytorch = None