fix for bug #13083. missing entity caused the Copies and Folders pane to come up blank.

mailnews/compose/prefs/resources/locale/en-US/pref-copiesfolders.dtd

@@ -1,31 +0,0 @@
-<!--
-The contents of this file are subject to the Netscape Public
-License Version 1.1 (the "License"); you may not use this file
-except in compliance with the License. You may obtain a copy of
-the License at http://www.mozilla.org/NPL/
-
-Software distributed under the License is distributed on an "AS
-IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
-implied. See the License for the specific language governing
-rights and limitations under the License.
-
-The Original Code is Mozilla Communicator client code, released
-March 31, 1998.
-
-The Initial Developer of the Original Code is Netscape
-Communications Corporation. Portions created by Netscape are
- Copyright (C) 1998-1999 Netscape Communications Corporation. All
-Rights Reserved.
---> 
-
-<!ENTITY window.title "Copies and Folders">
-<!ENTITY pane.title "Copies and Folders">
-<!ENTITY sendMsg.label "When sending a mail message, automatically">
-<!ENTITY place.label "Place a copy in FOLDER">
-<!ENTITY bccEmail.label "BCC: EMAIL">
-<!ENTITY bccOther.label "BCC Other address:">
-<!ENTITY senNews.label "When sending a newsgroup message, automatically">
-<!ENTITY storage.label "Storage for Drafts and Templates">
-<!ENTITY keepDraft.label "Keep Draft in FOLDER">
-<!ENTITY keepTemplate.label "Keep Templates in FOLDER">
-<!ENTITY chooseFolder.label "Choose Folder...">