Delete js-test-post.js.

LayoutTests/fast/css/background-currentcolor.html

 <style>
 #test3 { color: blue; }
 </style>
 <div id="test-container">
   <div id="test1" style="color:green; background: currentColor"></div>
   <div id="test2" style="color:red; background: currentColor"></div>
   <div style="color:green">
     <div id="test3" style="color:currentColor; background: currentColor"></div>
   </div>
 </div>
 <script src="../../fast/js/resources/js-test-pre.js"></script>
 <script>
 description('Test that background-color is non-inherit and currentColor is handled correctly.');
 var test1 = document.getElementById("test1");
 var test2 = document.getElementById("test2");
 var test3 = document.getElementById("test3");
 test2.style.color = "green";
 shouldBeEqualToString('getComputedStyle(test1).backgroundColor', 'rgb(0, 128, 0)');
 shouldBeEqualToString('getComputedStyle(test2).backgroundColor', 'rgb(0, 128, 0)');
 shouldBeEqualToString('getComputedStyle(test3).backgroundColor', 'rgb(0, 128, 0)');
 </script>
-<script src="../../fast/js/resources/js-test-post.js"></script>