[gtk/wip/baedert/for-master] tooltipwindow: Don't manually validate the css node

[Timm Bäder <baedert src gnome org>]

commit 9977ec39a02e09fb39afd44f34bb595b600c8e23
Author: Timm Bäder <mail baedert org>
Date:   Tue Feb 4 09:35:06 2020 +0100

    tooltipwindow: Don't manually validate the css node
    
    Same reason we don't do it anymore in GtkPopover.

 gtk/gtktooltipwindow.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/gtk/gtktooltipwindow.c b/gtk/gtktooltipwindow.c
index 2467657889..a80c8034c5 100644
--- a/gtk/gtktooltipwindow.c
+++ b/gtk/gtktooltipwindow.c
@@ -364,7 +364,6 @@ static void
 gtk_tooltip_window_show (GtkWidget *widget)
 {
   _gtk_widget_set_visible_flag (widget, TRUE);
-  gtk_css_node_validate (gtk_widget_get_css_node (widget));
   gtk_widget_realize (widget);
   gtk_tooltip_window_native_check_resize (GTK_NATIVE (widget));
   gtk_widget_map (widget);