Remove the unused cloud-import-banner from the file manager.

Change-Id: I98704eca528ed2ab56c96f6688e7232b92c831fd
Reviewed-on: https://chromium-review.googlesource.com/1149660Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Sam McNally <sammc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577810}

ui/file_manager/file_manager/foreground/css/file_manager.css

@@ -2231,15 +2231,6 @@ li#progress-center-close-view.error.single button.dismiss,
   visibility: hidden;
 }
 
-#cloud-import-banner {
-  background: rgb(33, 150, 243);
-  color: white;
-  display: flex;
-  flex: 0 0 14px;
-  font-size: 14px;
-  padding: 20px 15px;
-}
-
 .text-measure {
   pointer-events: none;
   position: absolute;

ui/file_manager/file_manager/main.html

@@ -471,11 +471,6 @@
                 <div class="drive-text" id="drive-auth-failed-warning-text"></div>
               </div>
               <div class="downloads-warning" hidden></div>
-              <div id="cloud-import-banner" hidden>
-                <!-- TODO(mtomasz): Replace with final contents. -->
-                <a id="cloud-import-banner-close" class="cr-dialog-close"></a>
-                Welcome to the new epic photo importer!
-              </div>
               <div id="list-container">
                 <div id="more-actions-info" i18n-content="SEE_MENU_FOR_ACTIONS" hidden></div>
                 <div id="empty-folder" hidden>