remove references to __orig_class__, i don't remember what it is but this test was failing and i don't think we use it anymore

Author: DetachHead

basedtyping/__init__.py

@@ -260,7 +260,7 @@ class ReifiedGeneric(
 
     >>> class Foo(ReifiedGeneric[T]):
     ...     def create_instance(self) -> T:
-    ...         cls = self.__orig_class__.__args__[0]
+    ...         cls = self.__reified_generics__[0]
     ...         return cls()
     ...
     ...  foo: Foo[int] = Foo() # error: generic cannot be reified

tests/test_reified_generics/test_reified_generic.py

@@ -57,7 +57,6 @@ def __init__(self) -> None:
             assert self.__reified_generics__ == (int,)
 
     Foo[int]()
-    assert not hasattr(Foo, "__orig_class__")
 
 
 def test_concrete_subclass() -> None: