NTP4: erase notification promo UI

chrome/browser/resources/ntp4/new_tab.css

 /* 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. */
 
 html {
   /* It's necessary to put this here instead of in body in order to get the
      background-size of 100% to work properly */
   height: 100%;
   overflow: hidden;
 }
 
 body {
   /* Don't highlight links when they're tapped. Safari has bugs here that
      show up as flicker when dragging in some situations */
   -webkit-tap-highlight-color: transparent;
   /* Don't allow selecting text - can occur when dragging */
   -webkit-user-select: none;
   background-size: auto 100%;
   margin: 0;
 }
 
 /* [hidden] does display:none, but its priority is too low in some cases. */
 [hidden] {
   display: none !important;
 }
 
-#notification-container {
-  -webkit-transition: opacity 200ms;
-  bottom: 31px;
-  display: block;
-  float: left;
-  position: relative;
-  text-align: start;
-  z-index: 15;
-}
-
-html[dir='rtl'] #notification-container {
-  float: right;
-}
-
-#notification-container.card-changed {
-  -webkit-transition: none;
-  opacity: 0;
-}
-
-#notification-container.inactive {
-  -webkit-transition: opacity 200ms;
-  opacity: 0;
-}
-
-#notification {
-  display: inline-block;
-  font-weight: bold;
-  white-space: nowrap;
-}
-
-#notification > * {
-  display: inline-block;
-  white-space: normal;
-}
-
-#notification > div > div,
-#notification > div {
-  display: inline-block;
-}
-
-/* NOTE: This is in the probable case that we start stuffing 16x16 data URI'd
- * icons in the promo notification responses. */
-#notification > span > img {
-  margin-bottom: -3px;
-}
-
-#notification .close-button {
-  -webkit-margin-start: 8px;  /* Matching value in TilePage#repositionTile_. */
-  vertical-align: top;
-}
-
 .close-button {
   background: no-repeat;
   background-color: transparent;
   /* TODO(estade): this should animate between states. */
   background-image: -webkit-image-set(
       url(../../../../ui/resources/default_100_percent/close_2.png) 1x,
       url(../../../../ui/resources/default_200_percent/close_2.png) 2x);
   border: 0;
   cursor: default;
   display: inline-block;
@@ skipping 325 matching lines @@
   padding: 0;
 }
 
 .other-sessions-promo-message:only-child {
   display: block;
 }
 
 .other-sessions-promo-message p {
   margin: 0;
 }