Avoid spaces only limitation

app.py

@@ -119,7 +119,7 @@ def infer(
             E2TTS_ema_model = load_e2tts()
         ema_model = E2TTS_ema_model
     elif isinstance(model, list) and model[0] == "Custom":
-        assert not USING_SPACES, "Only official checkpoints allowed in Spaces."
+        # assert not USING_SPACES, "Only official checkpoints allowed in Spaces."
         global custom_ema_model, pre_custom_path
         if pre_custom_path != model[1]:
             show_info("Loading Custom TTS model...")