FIX-#2348: Fix default to pandas warnings (#2349)

Signed-off-by: Igoshev, Yaroslav <[email protected]>

Author: YarShev

modin/backends/pandas/query_compiler.py

@@ -2559,31 +2559,6 @@ def _callable_func(self, func, axis, *args, **kwargs):
         method="size",
     )
 
-    def groupby_dict_agg(self, by, func_dict, groupby_args, agg_args, drop=False):
-        """Apply aggregation functions to a grouped dataframe per-column.
-
-        Parameters
-        ----------
-        by : PandasQueryCompiler
-            The column to group by
-        func_dict : dict of str, callable/string
-            The dictionary mapping of column to function
-        groupby_args : dict
-            The dictionary of keyword arguments for the group by.
-        agg_args : dict
-            The dictionary of keyword arguments for the aggregation functions
-        drop : bool
-            Whether or not to drop the column from the data.
-
-        Returns
-        -------
-        PandasQueryCompiler
-            The result of the per-column aggregations on the grouped dataframe.
-        """
-        return self.default_to_pandas(
-            lambda df: df.groupby(by=by, **groupby_args).agg(func_dict, **agg_args)
-        )
-
     def groupby_agg(
         self,
         by,