Update test_inference.py

Author: xvjiarui

tests/test_inference.py

@@ -9,6 +9,8 @@ def test_test_time_augmentation_on_cpu():
     config_file = 'configs/pspnet/pspnet_r50-d8_512x1024_40k_cityscapes.py'
     config = mmcv.Config.fromfile(config_file)
 
+    # Remove pretrain model download for testing
+    config.model.pretrained = None
     # Replace SyncBN with BN to inference on CPU
     norm_cfg = dict(type='BN', requires_grad=True)
     config.model.backbone.norm_cfg = norm_cfg