Revert of [chromeos/about:power] Collect cpuidle and cpufreq stats

chrome/browser/resources/chromeos/power.css

 /*
  * Copyright 2014 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.
  */
 
-#main-table {
-  border-collapse: collapse;
-  border-width: 0;
+#main-layout {
   margin-left: auto;
   margin-right: auto;
-  table-layout: fixed;
-  width: 1000px;
+  width: 600px;
 }
 
-tr.section-row {
-  border-bottom-width: 2px;
-  border-color: #000;
-  border-left-width: 0;
-  border-right-width: 0;
-  border-style: solid;
-  border-top-width: 2px;
+hr.section-boundary {
+  background: #000;
+  border: 0;
+  height: 2px;
   width: 100%;
 }
 
-td.title-cell {
-  border-width: 0;
-  text-align: right;
-  vertical-align: top;
-  width: 15%;
-}
-
-p.title-text {
-  font-weight: bold;
-  margin-right: 10px;
-}
-
-td.show-button-cell {
-  border-bottom-width: 0;
-  border-color: #aaa;
-  border-left-width: 1px;
-  border-right-width: 1px;
-  border-style: solid;
-  border-top-width: 0;
-  text-align: center;
-  vertical-align: top;
-  width: 10%;
-}
-
-td.plots-cell {
-  border-width: 0;
-  padding: 10px;
-  text-align: left;
-  width: 75%;
-}
-
-div.section-div {
+div.plot-canvas-div {
+  overflow: auto;
   width: 100%;
 }
 
-div.plots-div {
-  width: 100%;
-}
-
-button.show-button {
-  margin: 10px;
-}
-
 button.reload-button {
   margin-bottom: 10px;
   margin-top: 10px;
 }