Update test_models.py

Author: brianhou0208

tests/test_models.py

@@ -16,7 +16,6 @@ def get_encoders():
     encoders.append("tu-resnet34")  # for timm universal traditional-like encoder
     encoders.append("tu-convnext_atto")  # for timm universal transformer-like encoder
     encoders.append("tu-darknet17")  # for timm universal vgg-like encoder
-    encoders.append("mit_b0")
     return encoders