Don't preprocess dtd files.

browser/components/prefwindow/jar.mn

@@ -25,7 +25,7 @@ browser.jar:
 *   content/browser/pref/permissions.js                    (content/permissions.js)
 
 en-US.jar:
-*+  locale/en-US/browser/pref/pref-navigator.dtd           (locale/pref-navigator.dtd)
++   locale/en-US/browser/pref/pref-navigator.dtd           (locale/pref-navigator.dtd)
     locale/en-US/browser/pref/addPopup.properties          (locale/addPopup.properties)
     locale/en-US/browser/pref/pref.dtd                     (locale/pref.dtd)
     locale/en-US/browser/pref/pref-advanced.dtd            (locale/pref-advanced.dtd)
@@ -33,7 +33,7 @@ en-US.jar:
     locale/en-US/browser/pref/pref-connection.dtd          (locale/pref-connection.dtd)    
     locale/en-US/browser/pref/pref-extensions.dtd          (locale/pref-extensions.dtd)
     locale/en-US/browser/pref/pref-features.dtd            (locale/pref-features.dtd)
-    locale/en-US/browser/pref/pref-features-images.dtd      (locale/pref-features-images.dtd)
+    locale/en-US/browser/pref/pref-features-images.dtd     (locale/pref-features-images.dtd)
     locale/en-US/browser/pref/pref-fonts.dtd               (locale/pref-fonts.dtd)
     locale/en-US/browser/pref/pref-privacy.dtd             (locale/pref-privacy.dtd)
     locale/en-US/browser/pref/pref-themes.dtd              (locale/pref-themes.dtd)

browser/components/prefwindow/locale/pref-navigator.dtd

@@ -11,11 +11,9 @@
 <!ENTITY  useBlank.label            "Use Blank Page">
 <!ENTITY  useBlank.accesskey        "B">
 
-#ifdef XP_WIN
 <!ENTITY defaultBrowserGroup.label  "Default Browser">
 <!ENTITY defaultBrowserButton.label "Set Default Browser">
 <!ENTITY makeDefaultText            "Set &brandShortName; as your default browser.">
-#endif
 
 <!-- XXXben oh please, can we do better than this text-wise? -->
 <!ENTITY showConnections.label      "Connection Settings...">