chore: Update app.py to remove filter_columns in init_leaderboard function

app.py

@@ -80,9 +80,7 @@ def init_leaderboard(dataframe):
         ),
         search_columns=[AutoEvalColumn.model.name],
         hide_columns=[c.name for c in fields(AutoEvalColumn) if c.hidden],
-        filter_columns=[
-            ColumnFilter(AutoEvalColumn.model.name, type="dropdown", label="Select Model"),
-        ],
+        filter_columns=[],
         interactive=False,
     )