[gtk+/gtk-3-22] gdkdisplay: Remove a pointless assignment

[Daniel Boles <dboles src gnome org>]

commit 9d532da2dd4fafba8970d6d11a8378c5565b2de3
Author: Daniel Boles <dboles src gnome org>
Date:   Sun Aug 6 01:11:34 2017 +0100

    gdkdisplay: Remove a pointless assignment

 gdk/gdkdisplay.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/gdk/gdkdisplay.c b/gdk/gdkdisplay.c
index 6b012ca..f07d188 100644
--- a/gdk/gdkdisplay.c
+++ b/gdk/gdkdisplay.c
@@ -2343,9 +2343,7 @@ gdk_error_trap_pop_internal (gboolean need_code)
   result = 0;
   for (l = trap->displays; l != NULL; l = l->next)
     {
-      gint code = 0;
-
-      code = class->pop_error_trap (l->data, !need_code);
+      gint code = class->pop_error_trap (l->data, !need_code);
 
       /* we use the error on the last display listed, why not. */
       if (code != 0)