Noissue - Remove unused variable in unit test

test/filterStorage_readwrite.js

Index: test/filterStorage_readwrite.js
===================================================================
--- a/test/filterStorage_readwrite.js
+++ b/test/filterStorage_readwrite.js
@@ -19,30 +19,29 @@
 
 const {createSandbox, unexpectedError} = require("./_common");
 
 let Filter = null;
 let FilterNotifier = null;
 let FilterStorage = null;
 let IO = null;
 let Prefs = null;
-let Subscription = null;
 let ExternalSubscription = null;
 let dataFile = null;
 
 exports.setUp = function(callback)
 {
   let sandboxedRequire = createSandbox();
   (
     {Filter} = sandboxedRequire("../lib/filterClasses"),
     {FilterNotifier} = sandboxedRequire("../lib/filterNotifier"),
     {FilterStorage} = sandboxedRequire("../lib/filterStorage"),
     {IO} = sandboxedRequire("./stub-modules/io"),
     {Prefs} = sandboxedRequire("./stub-modules/prefs"),
-    {Subscription, ExternalSubscription} = sandboxedRequire("../lib/subscriptionClasses")
+    {ExternalSubscription} = sandboxedRequire("../lib/subscriptionClasses")
   );
 
   Prefs.patternsfile = "patterns.ini";
   dataFile = IO.resolveFilePath(Prefs.patternsfile);
 
   FilterStorage.addFilter(Filter.fromText("foobar"));
   callback();
 };