remove kwargs from (DataFrame|Series).fillna (#30528)

Author: topper-123

pandas/core/frame.py

@@ -4014,16 +4014,14 @@ def fillna(
         inplace=False,
         limit=None,
         downcast=None,
-        **kwargs,
-    ):
+    ) -> Optional["DataFrame"]:
         return super().fillna(
             value=value,
             method=method,
             axis=axis,
             inplace=inplace,
             limit=limit,
             downcast=downcast,
-            **kwargs,
         )
 
     @Appender(_shared_docs["replace"] % _shared_doc_kwargs)

pandas/core/series.py

@@ -4005,16 +4005,14 @@ def fillna(
         inplace=False,
         limit=None,
         downcast=None,
-        **kwargs,
-    ):
+    ) -> Optional["Series"]:
         return super().fillna(
             value=value,
             method=method,
             axis=axis,
             inplace=inplace,
             limit=limit,
             downcast=downcast,
-            **kwargs,
         )
 
     @Appender(generic._shared_docs["replace"] % _shared_doc_kwargs)