[gtk/gtk-3-24] Don't make initializing return_val conditional.

[John Ralls <jralls src gnome org>]

commit baa283b73b917ca033831a36f487696e9f9b1dbe
Author: John Ralls <jralls ceridwen us>
Date:   Fri Dec 14 15:57:24 2018 -0800

    Don't make initializing return_val conditional.
    
    Closes: https://gitlab.gnome.org/GNOME/gtk/issues/1517

 gdk/quartz/gdkevents-quartz.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/gdk/quartz/gdkevents-quartz.c b/gdk/quartz/gdkevents-quartz.c
index 952d4a8189..642fe7f1ee 100644
--- a/gdk/quartz/gdkevents-quartz.c
+++ b/gdk/quartz/gdkevents-quartz.c
@@ -1551,8 +1551,10 @@ gdk_event_translate (GdkEvent *event,
           grab = _gdk_display_get_last_device_grab (_gdk_display,
                                                     gdk_seat_get_pointer (seat));
         }
-      return_val = TRUE;
     }
+
+  return_val = TRUE;
+
   switch (event_type)
     {
     case GDK_QUARTZ_LEFT_MOUSE_DOWN: