Revert r217952 to make behavior of horizontal scroll bar in page chrome://extensions keep consisten…

chrome/browser/resources/extensions/extensions.css

Index: chrome/browser/resources/extensions/extensions.css
diff --git a/chrome/browser/resources/extensions/extensions.css b/chrome/browser/resources/extensions/extensions.css
index 98bbdfe0ae0048706d8aff3fe48a785290176a27..b0745d7b2f4c9aaa8ed1eb1732c479cd12e4b015 100644
--- a/chrome/browser/resources/extensions/extensions.css
+++ b/chrome/browser/resources/extensions/extensions.css
@@ -2,18 +2,6 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
-html,
-body {
-  height: 100%;
-  overflow: hidden;
-}
-
-@media print {
-  body {
-    height: auto;
-  }
-}
-
 html.loading * {
   -webkit-transition-duration: 0 !important;
 }
@@ -24,6 +12,10 @@ html:not(.focus-outline-visible)
   border-color: rgba(0, 0, 0, 0.25);
 }
 
+.no-scroll {
+  overflow-y: hidden;
+}
+
 /* Developer mode */
 
 #dev-controls {
@@ -102,11 +94,6 @@ html:not(.focus-outline-visible)
 
 /* Contents */
 
-#page-container {
-  height: 100%;
-  overflow-y: auto;
-}
-
 #extension-settings {
   max-width: 738px;
 }