[gtk+] flowbox: remove unused prelight code

[Cosimo Cecchi <cosimoc src gnome org>]

commit 11ad60d386d4f5bfe6920943603aa4a6bf966bcc
Author: Matt Watson <mattdangerw gmail com>
Date:   Fri Dec 18 17:47:00 2015 -0800

    flowbox: remove unused prelight code
    
    It was causing needless redraws
    
    https://bugzilla.gnome.org/show_bug.cgi?id=759757

 gtk/gtkflowbox.c |   20 --------------------
 1 files changed, 0 insertions(+), 20 deletions(-)
---
diff --git a/gtk/gtkflowbox.c b/gtk/gtkflowbox.c
index 3583219..9f6d4be 100644
--- a/gtk/gtkflowbox.c
+++ b/gtk/gtkflowbox.c
@@ -799,7 +799,6 @@ struct _GtkFlowBoxPrivate {
   guint             row_spacing;
   guint             column_spacing;
 
-  GtkFlowBoxChild  *prelight_child;
   GtkFlowBoxChild  *cursor_child;
   GtkFlowBoxChild  *selected_child;
 
@@ -920,19 +919,6 @@ gtk_flow_box_find_child_at_pos (GtkFlowBox *box,
 }
 
 static void
-gtk_flow_box_update_prelight (GtkFlowBox      *box,
-                              GtkFlowBoxChild *child)
-{
-  GtkFlowBoxPrivate *priv = BOX_PRIV (box);
-
-  if (child != priv->prelight_child)
-    {
-      priv->prelight_child = child;
-      gtk_widget_queue_draw (GTK_WIDGET (box));
-    }
-}
-
-static void
 gtk_flow_box_update_active (GtkFlowBox      *box,
                             GtkFlowBoxChild *child)
 {
@@ -2838,7 +2824,6 @@ autoscroll_cb (GtkWidget     *widget,
 
       child = gtk_flow_box_find_child_at_pos (box, x, y);
 
-      gtk_flow_box_update_prelight (box, child);
       gtk_flow_box_update_active (box, child);
 
       if (child != NULL)
@@ -2941,7 +2926,6 @@ gtk_flow_box_enter_notify_event (GtkWidget        *widget,
     return FALSE;
 
   child = gtk_flow_box_find_child_at_pos (box, event->x, event->y);
-  gtk_flow_box_update_prelight (box, child);
   gtk_flow_box_update_active (box, child);
 
   return FALSE;
@@ -2962,7 +2946,6 @@ gtk_flow_box_leave_notify_event (GtkWidget        *widget,
   else
     child = gtk_flow_box_find_child_at_pos (box, event->x, event->y);
 
-  gtk_flow_box_update_prelight (box, child);
   gtk_flow_box_update_active (box, child);
 
   return FALSE;
@@ -3043,7 +3026,6 @@ gtk_flow_box_motion_notify_event (GtkWidget      *widget,
     }
 
   child = gtk_flow_box_find_child_at_pos (box, relative_x, relative_y);
-  gtk_flow_box_update_prelight (box, child);
   gtk_flow_box_update_active (box, child);
 
   return GTK_WIDGET_CLASS (gtk_flow_box_parent_class)->motion_notify_event (widget, event);
@@ -3284,8 +3266,6 @@ gtk_flow_box_remove (GtkContainer *container,
   was_visible = child_is_visible (GTK_WIDGET (child));
   was_selected = CHILD_PRIV (child)->selected;
 
-  if (child == priv->prelight_child)
-    priv->prelight_child = NULL;
   if (child == priv->active_child)
     priv->active_child = NULL;
   if (child == priv->selected_child)