small fix

Author: datutu-L

test/legacy_test/op_test.py

@@ -2909,13 +2909,13 @@ def _get_places(self):
                     return [place]
                 else:
                     return []
-            elif is_custom_device():
-                dev_type = paddle.device.get_all_custom_device_type()[0]
-                place = core.CustomPlace(dev_type, 0)
-                if core.is_float16_supported(place):
-                    return [place]
-                else:
-                    return []
+            # elif is_custom_device():
+            #     dev_type = paddle.device.get_all_custom_device_type()[0]
+            #     place = core.CustomPlace(dev_type, 0)
+            #     if core.is_float16_supported(place):
+            #         return [place]
+            #     else:
+            #         return []
             else:
                 return []
         places = []