fix: no longer automatically use anywidget in the %%bqsql magics (#2504)

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Fixes internal issue b/491124704 🦕

Author: tswast

bigframes/_magics.py

@@ -48,8 +48,4 @@ def _cell_magic(line, cell):
     if args.destination_var:
         ipython.push({args.destination_var: dataframe})
 
-    with bigframes.option_context(
-        "display.repr_mode",
-        "anywidget",
-    ):
-        display(dataframe)
+    display(dataframe)