Backed out changeset d44ae1668a70 (bug 1494685) as per emilio's request.

testing/web-platform/tests/css/css-transforms/text-perspective-001.html

@@ -1,27 +0,0 @@
-<!doctype>
-<meta charset="utf-8">
-<title>CSS Test: Text is not incorrectly clipped in presence of perspective.</title>
-<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
-<link rel="author" title="Mozilla" href="https://mozilla.org">
-<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1494685">
-<link rel="mismatch" href="about:blank">
-<style>
-* {
-  margin: 0;
-  padding: 0;
-}
-.container {
-  perspective: 1px;
-}
-.heading {
-  transform: translateZ(-9px) scale(10);
-}
-h1 {
-  font-size: 100px;
-}
-</style>
-<div class="container">
-  <div class="heading">
-    <h1>X</h1>
-  </div>
-</div>