Unprefix usage of -webkit-transform in tests

LayoutTests/fast/transforms/shadows.html

Index: LayoutTests/fast/transforms/shadows.html
diff --git a/LayoutTests/fast/transforms/shadows.html b/LayoutTests/fast/transforms/shadows.html
index 33ff325fd9e4e4a59b61f1959a74e6cacabc084a..721a06183dcd9f0402c3729cc69c852bde8abb93 100644
--- a/LayoutTests/fast/transforms/shadows.html
+++ b/LayoutTests/fast/transforms/shadows.html
@@ -15,19 +15,19 @@
     }
 
     .transform1 {
-        -webkit-transform: rotate(45deg);
+        transform: rotate(45deg);
     }
 
     .transform2 {
-        -webkit-transform: scale(0.5, 1);
+        transform: scale(0.5, 1);
     }
 
     .transform3 {
-        -webkit-transform: rotate(45deg) scale(0.5, 1);
+        transform: rotate(45deg) scale(0.5, 1);
     }
 
     .transform4 {
-        -webkit-transform: skewX(45deg);
+        transform: skewX(45deg);
     }
 
     .shadow1 {