Fix for 43236. Removing "Double-clicking a message always opens a new window..." item from the pref dialog. r=putterman

l10n/langpacks/en-DE/chrome/en-DE/messenger/locale/pref-mailnews.dtd

@@ -44,6 +44,4 @@ Rights Reserved.
 
 <!ENTITY reuseThread.label                "Double-clicking a folder opens it in a new window.">
 <!ENTITY reuseThread.accesskey            "f">
-<!ENTITY reuseMessage.label               "Double-clicking a message always opens a new window. (Leave this unchecked to reuse an existing window).">
-<!ENTITY reuseMessage.accesskey           "n">
 <!ENTITY reuseExp.label                   "If you prefer fewer windows, unselect these options, and Mail will open items into existing windows.">

l10n/langpacks/en-GB/chrome/en-GB/messenger/locale/pref-mailnews.dtd

@@ -44,6 +44,4 @@ Rights Reserved.
 
 <!ENTITY reuseThread.label                "Double-clicking a folder opens it in a new window.">
 <!ENTITY reuseThread.accesskey            "f">
-<!ENTITY reuseMessage.label               "Double-clicking a message always opens a new window. (Leave this unchecked to reuse an existing window).">
-<!ENTITY reuseMessage.accesskey           "n">
 <!ENTITY reuseExp.label                   "If you prefer fewer windows, unselect these options, and Mail will open items into existing windows.">

mailnews/base/prefs/resources/locale/en-US/pref-mailnews.dtd

@@ -44,6 +44,4 @@ Rights Reserved.
 
 <!ENTITY reuseThread.label                "Double-clicking a folder opens it in a new window.">
 <!ENTITY reuseThread.accesskey            "f">
-<!ENTITY reuseMessage.label               "Double-clicking a message always opens a new window. (Leave this unchecked to reuse an existing window).">
-<!ENTITY reuseMessage.accesskey           "n">
 <!ENTITY reuseExp.label                   "If you prefer fewer windows, unselect these options, and Mail will open items into existing windows.">

mailnews/mailnews.js

@@ -209,7 +209,6 @@ localDefPref("mailnews.thread_pane_height",         -1);
 localDefPref("mailnews.category_pane_width",        -1);
 pref("mailnews.reuse_thread_window",        true);
 pref("mailnews.reuse_thread_window2",        true);
-pref("mailnews.reuse_message_window",       true);
 pref("mailnews.message_in_thread_window",   true);
 pref("mailnews.javascript_enabled",         true);
 

modules/libpref/src/init/mailnews.js

@@ -209,7 +209,6 @@ localDefPref("mailnews.thread_pane_height",         -1);
 localDefPref("mailnews.category_pane_width",        -1);
 pref("mailnews.reuse_thread_window",        true);
 pref("mailnews.reuse_thread_window2",        true);
-pref("mailnews.reuse_message_window",       true);
 pref("mailnews.message_in_thread_window",   true);
 pref("mailnews.javascript_enabled",         true);