Remove obsolete v8_benchmark. It was replaced with Octane on the perf bots.

chrome/test/data/v8_benchmark/style.css

Index: chrome/test/data/v8_benchmark/style.css
diff --git a/chrome/test/data/v8_benchmark/style.css b/chrome/test/data/v8_benchmark/style.css
deleted file mode 100644
index d9f4dbfc0c6b7a78fa086698343075e687838f33..0000000000000000000000000000000000000000
--- a/chrome/test/data/v8_benchmark/style.css
+++ /dev/null
@@ -1,77 +0,0 @@
-hr {
-  border: 1px solid;
-  border-color: #36C;
-  margin: 1em 0;
-}
-
-h1, h2, h3, h4 {
-  margin: 0;
-  margin-bottom: 0;
-}
-
-h1 {
-  font-size: 154%;
-  height: 1.2em;
-}
-
-
-li {
-  margin: .3em 0 1em 0;
-}
-
-body {
-  font-family: Helvetica,Arial,sans-serif;
-  color: #000;
-  background-color: #fff;
-}
-
-div.title {
-  background-color: rgb(229, 236, 249);
-  border-top: 1px solid rgb(51, 102, 204);
-  text-align: center;
-  padding-top: 0.2em;
-  padding-bottom: 0.2em;
-  margin-bottom: 20px;
-}
-
-div.subtitle {
-  border-bottom: 1px solid rgb(51, 102, 204);
-  margin-top: 2em;
-}
-
-td.contents {
-  text-align: left;
-}
-
-div.run {
-  margin: 20px;
-  width: 300px;
-  height: 300px;
-  float: right;
-  background-color: rgb(229, 236, 249);
-  background-image: url(v8-logo.png);
-  background-position: center center;
-  background-repeat: no-repeat;
-  border: 1px solid rgb(51, 102, 204);
-}
-
-div.warning { 
-  background: #ffffd9;
-  border: 1px solid #d2d26a;
-  display: none;
-  margin: 1em 0 2em;
-  padding: 8px;
-  text-align: center; 
-}
-
-#status {
-  text-align: center;
-  margin-top: 50px;
-  font-size: 120%;
-  font-weight: bold;
-}
-
-#results {
-  text-align: left;
-  margin: 30px 0 0 90px;
-}