diff --git a/testing/web-platform/tests/css/css-flexbox/flex-flow-auto-margins-no-available-space-assert.html b/testing/web-platform/tests/css/css-flexbox/flex-flow-auto-margins-no-available-space-assert.html
deleted file mode 100644
index 0b7799f20523..000000000000
--- a/testing/web-platform/tests/css/css-flexbox/flex-flow-auto-margins-no-available-space-assert.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!DOCTYPE html>
-<title>CSS Flexbox: flex-flow auto margin with no available space</title>
-<link rel="help" href="https://www.w3.org/TR/css-flexbox-1/#flex-shrink-property">
-<link rel="help" href="https://crbug.com/380201">
-<meta name="assert" content="This test checks that a flexbox doesn't shrink below border/padding
-when stretching children with no available space.">
-<style>
-* {
-    display: flex;
-    padding-bottom: 20pt;
-    min-height: 0.7%;
-    margin-top: 6000%;
-    flex-shrink: 0;
-    flex-basis: 7000%;
-}
-</style>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/resources/check-layout-th.js"></script>
-<abbr data-expected-height=30210272>
-    <input></input>
-</abbr>
-<script>
-    window.checkLayout('abbr');
-</script>
\ No newline at end of file
