Unprefix flexbox tests.

LayoutTests/css3/flexbox/cross-axis-scrollbar.html

Index: LayoutTests/css3/flexbox/cross-axis-scrollbar.html
diff --git a/LayoutTests/css3/flexbox/cross-axis-scrollbar.html b/LayoutTests/css3/flexbox/cross-axis-scrollbar.html
index 2979b241d42e5425eaeca8c5496a6de891bf6420..b4d0da823fdbdd0192cd709fb40f4f8b194c4ca5 100644
--- a/LayoutTests/css3/flexbox/cross-axis-scrollbar.html
+++ b/LayoutTests/css3/flexbox/cross-axis-scrollbar.html
@@ -20,7 +20,7 @@ body {
 }
 
 .column > div {
-    -webkit-flex: none;
+    flex: none;
     flex: none;
     background-color: green;
     width: 100px;
@@ -29,21 +29,21 @@ body {
 
 .row > div {
     background-color: green;
-    -webkit-flex: 1;
+    flex: 1;
     flex: 1;
     height: 50px;
     min-height: 0;
 }
 
 .vertical-lr > .column > div {
-    -webkit-flex: none;
+    flex: none;
     flex: none;
     height: 50px;
     width: 20px;
 }
 
 .vertical-lr > .row > div {
-    -webkit-flex: 1;
+    flex: 1;
     flex: 1;
     width: 100px;
 }