Unprefix usage of -webkit-transform in tests

LayoutTests/animations/3d/state-at-end-event-transform.html

Index: LayoutTests/animations/3d/state-at-end-event-transform.html
diff --git a/LayoutTests/animations/3d/state-at-end-event-transform.html b/LayoutTests/animations/3d/state-at-end-event-transform.html
index 63e80e676db83578b0bf15cdb0172980bcbf588a..4be46f7eac71deb8e696af2774c69fa10852f103 100644
--- a/LayoutTests/animations/3d/state-at-end-event-transform.html
+++ b/LayoutTests/animations/3d/state-at-end-event-transform.html
@@ -30,12 +30,12 @@
     }
 
     .hardware {
-      -webkit-transform: translate3d(0, 0, 0);
+      transform: translate3d(0, 0, 0);
     }
 
     @-webkit-keyframes move {
-      from { -webkit-transform: translate3d(0, 0, 0); }
-      to   { -webkit-transform: translate3d(300px, 0, 0); }
+      from { transform: translate3d(0, 0, 0); }
+      to   { transform: translate3d(300px, 0, 0); }
     }
    </style>
    <script type="text/javascript" charset="utf-8">