[gtk+] reftests: Fix border-style-none reftest

[Benjamin Otte <otte src gnome org>]

commit f313a8235bfeaea63bc657d33a5035ebbcc6f318
Author: Benjamin Otte <otte redhat com>
Date:   Tue Jan 20 01:15:04 2015 +0100

    reftests: Fix border-style-none reftest
    
    Unset all CSS; Adwaita was messing up things.

 testsuite/reftests/border-style-none.css |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/testsuite/reftests/border-style-none.css b/testsuite/reftests/border-style-none.css
index 06154c8..25e2e98 100644
--- a/testsuite/reftests/border-style-none.css
+++ b/testsuite/reftests/border-style-none.css
@@ -1,7 +1,6 @@
 * {
+  all: unset;
   border-color: red;
-  border-image: none;
-  background-image: none;
 }
 
 GtkButton {