Remove old tracing code now that it has moved to third_party.

chrome/browser/resources/tracing/timeline_analysis.css

Index: chrome/browser/resources/tracing/timeline_analysis.css
diff --git a/chrome/browser/resources/tracing/timeline_analysis.css b/chrome/browser/resources/tracing/timeline_analysis.css
deleted file mode 100644
index 47bc789f8934661da2b35f7f1f1759bc3f95ad7e..0000000000000000000000000000000000000000
--- a/chrome/browser/resources/tracing/timeline_analysis.css
+++ /dev/null
@@ -1,46 +0,0 @@
-/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file. */
-
-.timeline-analysis {
-    -webkit-user-select: text;
-    font-family: monospace;
-    white-space: pre;
-}
-
-.timeline-slice {
-    border-spacing: 4px 0;
-}
-.timeline-slice-header {
-    text-align: left;
-}
-.timeline-slice-col-0 {
-}
-.timeline-slice-col-1 {
-}
-
-.timeline-slices {
-    border-spacing: 4px 0;
-}
-.timeline-slices-header {
-    text-align: left;
-}
-.timeline-slices-col-0 {
-}
-.timeline-slices-col-1 {
-    text-align: right;
-}
-.timeline-slices-col-2 {
-    text-align: right;
-}
-
-.timeline-counter {
-    border-spacing: 4px 0;
-}
-.timeline-counter-header {
-    text-align: left;
-}
-.timeline-counter-col-0 {
-}
-.timeline-counter-col-1 {
-}