Followup to bug 788977: don't unnecessarily preprocess pinstripe's toolbox.css

browser/themes/pinstripe/jar.mn

@@ -245,7 +245,7 @@ browser.jar:
   skin/classic/browser/devtools/dock-window.png             (devtools/dock-window.png)
   skin/classic/browser/devtools/floating-scrollbars.css     (devtools/floating-scrollbars.css)
 * skin/classic/browser/devtools/inspector.css               (devtools/inspector.css)
-* skin/classic/browser/devtools/toolbox.css                 (devtools/toolbox.css)
+  skin/classic/browser/devtools/toolbox.css                 (devtools/toolbox.css)
 #ifdef MOZ_SERVICES_SYNC
   skin/classic/browser/sync-throbber.png
   skin/classic/browser/sync-16.png