[gtk+] gdk: Remove leftover variable

[Carlos Garnacho <carlosg src gnome org>]

commit f93837ceb2a03e03c3ba67098e20bb51c07ccdbe
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Dec 19 22:58:51 2017 +0100

    gdk: Remove leftover variable
    
    This is unused and leaked.

 gdk/gdkevents.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/gdk/gdkevents.c b/gdk/gdkevents.c
index ab641ba..fb773f5 100644
--- a/gdk/gdkevents.c
+++ b/gdk/gdkevents.c
@@ -364,7 +364,6 @@ _gdk_event_queue_handle_motion_compression (GdkDisplay *display)
 {
   GList *tmp_list;
   GList *pending_motions = NULL;
-  GList *history = NULL;
   GdkWindow *pending_motion_window = NULL;
   GdkDevice *pending_motion_device = NULL;
   GdkEvent *last_motion = NULL;
@@ -406,8 +405,6 @@ _gdk_event_queue_handle_motion_compression (GdkDisplay *display)
     {
       GList *next = pending_motions->next;
 
-      history = g_list_prepend (history, pending_motions->data);
-
       if (last_motion &&
           (last_motion->motion.state &
            (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK |