[gtk+/gtk-3-22] tooltip: Remove unused assignment

[Daniel Boles <dboles src gnome org>]

commit 57ea1796e33681131da332afe2c5c83abcdf49f4
Author: Timm Bäder <mail baedert org>
Date:   Mon Mar 20 15:36:05 2017 +0100

    tooltip: Remove unused assignment
    
    hide_tooltip  gets overriden in any case 2 lines down, and return_value
    isn't used later in that function. The second assignment was introduced
    in ef1da5f6c2450fc5f7c7de4a17114cc7507a41ad, directly below the first
    assignment.

 gtk/gtktooltip.c |    9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)
---
diff --git a/gtk/gtktooltip.c b/gtk/gtktooltip.c
index e0672ae..ff98de1 100644
--- a/gtk/gtktooltip.c
+++ b/gtk/gtktooltip.c
@@ -1486,12 +1486,9 @@ gtk_tooltip_handle_event_internal (GdkEvent *event)
            tip_area_set = current_tooltip->tip_area_set;
            tip_area = current_tooltip->tip_area;
 
-           return_value = gtk_tooltip_run_requery (&has_tooltip_widget,
-                                                   current_tooltip,
-                                                   &x, &y);
-
-           /* Requested to be hidden? */
-           hide_tooltip = !return_value;
+           gtk_tooltip_run_requery (&has_tooltip_widget,
+                                     current_tooltip,
+                                     &x, &y);
 
            /* Leave notify should override the query function */
            hide_tooltip = (event->type == GDK_LEAVE_NOTIFY);