staging: r8188eu: remove OnAtim

Remove the empty OnAtim function. We can set the function pointer in
mlme_sta_tbl to NULL if no action is required for this management frame
subtype.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220421200449.191983-1-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -25,7 +25,7 @@ static mlme_handler mlme_sta_tbl[] = {
 	NULL,
 	NULL,
 	OnBeacon,
-	OnAtim,
+	NULL,
 	OnDisassoc,
 	OnAuthClient,
 	OnDeAuth,
@@ -1479,11 +1479,6 @@ unsigned int OnDisassoc(struct adapter *padapter, struct recv_frame *precv_frame
 	return _SUCCESS;
 }
 
-unsigned int OnAtim(struct adapter *padapter, struct recv_frame *precv_frame)
-{
-	return _SUCCESS;
-}
-
 unsigned int on_action_spct(struct adapter *padapter, struct recv_frame *precv_frame)
 {
 	unsigned int ret = _FAIL;