[gtk] reftests: Fix compilation

[Benjamin Otte <otte src gnome org>]

commit 0c7626495391ebd08d9724fd60e1c409893b855e
Author: Benjamin Otte <otte redhat com>
Date:   Tue Jun 26 00:53:39 2018 +0200

    reftests: Fix compilation
    
    FOREIGN surfaces are gone.

 testsuite/reftests/reftest-snapshot.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/testsuite/reftests/reftest-snapshot.c b/testsuite/reftests/reftest-snapshot.c
index 2640050dd8..b84d2f5832 100644
--- a/testsuite/reftests/reftest-snapshot.c
+++ b/testsuite/reftests/reftest-snapshot.c
@@ -108,8 +108,7 @@ snapshot_window_native (GdkSurface *window,
       XWindowAttributes attrs;
 
       if (gdk_surface_get_surface_type (window) == GDK_SURFACE_TOPLEVEL ||
-          gdk_surface_get_surface_type (window) == GDK_SURFACE_TEMP ||
-          gdk_surface_get_surface_type (window) == GDK_SURFACE_FOREIGN)
+          gdk_surface_get_surface_type (window) == GDK_SURFACE_TEMP)
         {
           /* give the WM/server some time to sync. They need it.
            * Also, do use popups instead of toplevels in your tests