smyrna mAttributesSlot: squash -Wunused-parameter warnings

Other similar warnings in this file were squashed in
bd869436742887a0089f5ad817ecb36a1546987c. But the revert in the previous commit
brought back this function without warnings squashed.

diff --git a/cmd/smyrna/gui/menucallbacks.c b/cmd/smyrna/gui/menucallbacks.c
index 0d49cd6218ee505e093fe584d4ad6844598eef08..96d4b36aaaa361415dd0755f4027cdf2c97cf7db 100644 (file)
--- a/cmd/smyrna/gui/menucallbacks.c
+++ b/cmd/smyrna/gui/menucallbacks.c
@@ -24,6 +24,9 @@
 
 void mAttributesSlot(GtkWidget * widget, gpointer user_data)
 {
+    (void)widget;
+    (void)user_data;
+
     showAttrsWidget(view->Topview);
 }