Bug 562485: Update removed-files.in for the extension manager changes. r=robstrong

browser/installer/removed-files.in

@@ -79,6 +79,7 @@ components/xpti.dat
 components/xptitemp.dat
 components/nsBackgroundUpdateService.js
 components/nsCloseAllWindows.js
+components/nsExtensionManager.js
 #ifndef XP_MACOSX
 components/autocomplete.xpt
 #endif