Fix cache removal

app.py

@@ -31,14 +31,13 @@ def clear_hf_cache_space():
     to_delete = []
     for repo in scan.repos:
         if repo.repo_type == "model":
-            to_delete.append([rev.commit_hash for rev in repo.revisions])
+            to_delete.extend([rev.commit_hash for rev in repo.revisions])
 
-    scan.delete_revisions(to_delete)
+    scan.delete_revisions(*to_delete).execute()
 
     print("Cache has been cleared")
 
 def upload_to_hub(path, upload_repo, hf_path, token):
-    
     card = ModelCard.load(hf_path)
     card.data.tags = ["mlx"] if card.data.tags is None else card.data.tags + ["mlx"]
     card.data.base_model = hf_path