[Mac] Remove unused ImportProgressDialog.xib and Panel.xib.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 82f34fa7acf7864fbc7932de37b25ad2427872ac..c0b27d3ce5ac52feb4758c33642051c73dc80e9e 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -7767,24 +7767,9 @@ the Bookmarks menu.">
 
         <!-- Import progress popup -->
         <if expr="is_macosx">
-          <message name="IDS_IMPORT_PROGRESS_TITLE" desc="Title for the importing progress dialog">
-            Importing
-          </message>
           <message name="IDS_IMPORT_SETTINGS_MENU_MAC" desc="The text label for the Import menu item.">
             Import Bookmarks and Settings...
           </message>
-          <message name="IDS_IMPORT_PROGRESS_STATUS_BOOKMARKS" desc="Import status for bookmarks">
-            Favorites/Bookmarks
-          </message>
-          <message name="IDS_IMPORT_PROGRESS_STATUS_SEARCH" desc="Import status for search engines">
-            Search settings
-          </message>
-          <message name="IDS_IMPORT_PROGRESS_STATUS_PASSWORDS" desc="Import status for passwords">
-            Saved passwords
-          </message>
-          <message name="IDS_IMPORT_PROGRESS_STATUS_HISTORY" desc="Import status for history">
-            Browsing history
-          </message>
         </if> <!-- is_macosx -->
       </if> <!-- not is_android -->