Revert D25717504: Clean up some type annotations in test/jit

Test Plan: revert-hammer

Differential Revision:
D25717504 (a4f30d48d8)

Original commit changeset: 9a83c44db02e

fbshipit-source-id: e6e3a83bed22701d8125f5a293dfcd5093c1a2cd

test/jit/test_builtins.py

@@ -2,7 +2,7 @@ import os
 import sys
 import inspect
 import unittest
-from typing import Dict, List
+from typing import List
 
 import torch
 
@@ -78,7 +78,8 @@ class TestBuiltins(JitTestCase):
             torch.jit.script(Mod())
 
     def test_del(self):
-        def fn(x: List[int]) -> List[int]:
+        def fn(x):
+            # type: (List[int]) -> List[int]
             a = x * 2
             del a
             return x
@@ -108,14 +109,16 @@ class TestBuiltins(JitTestCase):
                 return a
 
     def test_del_multiple_operands(self):
-        def fn(x: List[int]) -> List[int]:
+        def fn(x):
+            # type: (List[int]) -> List[int]
             a, b, c = x[0], x[1], x[2]
             del a, b, c
             return x
 
         self.checkScript(fn, ([1, 2, 3],))
 
-        def del_list_multiple_operands(x: List[int]) -> List[int]:
+        def del_list_multiple_operands(x):
+            # type: (List[int]) -> List[int]
             del x[0], x[1]
             return x
 
@@ -123,7 +126,8 @@ class TestBuiltins(JitTestCase):
         jit_out = torch.jit.script(del_list_multiple_operands)([0, 1, 2])
         self.assertEquals(py_out, jit_out)
 
-        def del_dict_multiple_operands(x: Dict[str, int]) -> Dict[str, int]:
+        def del_dict_multiple_operands(x):
+            # type: (Dict[str, int]) -> Dict[str, int]
             del x['hi'], x['there']
             return x