Update app.py

app.py

@@ -21,11 +21,10 @@ from mlx_lm import convert
 
 HF_TOKEN = os.environ.get("HF_TOKEN")
 SPACE_ID = os.environ.get("SPACE_ID")
+SPACE_HOST = os.environ.get("SPACE_HOST")
 
 # I'm not sure if we need to add more stuff here
 QUANT_PARAMS = {
-    "Q2": 2,
-    "Q3": 3,
     "Q4": 4,
     "Q6": 6,
     "Q8": 8,