[gtk/gtk-4-6] tooltipwindow: Remove a duplicate gtk_widget_class_set_css_name() call

[Matthias Clasen <matthiasc src gnome org>]

commit 6809a7832150c7269e12580dbf3ba6b426aa3fb0
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Apr 16 03:28:22 2022 +0400

    tooltipwindow: Remove a duplicate gtk_widget_class_set_css_name() call

 gtk/gtktooltipwindow.c | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/gtk/gtktooltipwindow.c b/gtk/gtktooltipwindow.c
index d316171600..3ebac348d5 100644
--- a/gtk/gtktooltipwindow.c
+++ b/gtk/gtktooltipwindow.c
@@ -388,8 +388,6 @@ gtk_tooltip_window_class_init (GtkTooltipWindowClass *klass)
   gtk_widget_class_bind_template_child (widget_class, GtkTooltipWindow, box);
   gtk_widget_class_bind_template_child (widget_class, GtkTooltipWindow, image);
   gtk_widget_class_bind_template_child (widget_class, GtkTooltipWindow, label);
-
-  gtk_widget_class_set_css_name (widget_class, "tooltip");
 }
 
 static void