Remove property-specific handling in animation-test-helpers.js

LayoutTests/animations/transition-and-animation-2.html

Index: LayoutTests/animations/transition-and-animation-2.html
diff --git a/LayoutTests/animations/transition-and-animation-2.html b/LayoutTests/animations/transition-and-animation-2.html
index 78609092fc9518b1096d106f1e82924bb97fee39..17383c19f8375a37eb25b86b720b26d1323a4886 100644
--- a/LayoutTests/animations/transition-and-animation-2.html
+++ b/LayoutTests/animations/transition-and-animation-2.html
@@ -30,9 +30,10 @@
     
     const expectedValues = [
       // [time, element-id, property, expected-value, tolerance]
-      [0.4, "box", "webkitTransform.5", 0, 0],
+      [0.4, "box", "transform", "none", 0],
     ];
-    
+
+    // FIXME: This doesn't get called so we don't trigger a transition...
     function setup()
     {
         document.getElementById("box").style.webkitTransform = "translateX(400px)";