Remove test for issue 397

The issue didn't see a second comment from the original poster in more
than three years, and no one else stepped up with the PR to implement
the proposal.

The commented out test should be removed

test/issues/issues-test.js

@@ -38,26 +38,6 @@ describe("issues", function () {
         testSinonFakeTimersWith(1000, 1001);
     });
 
-    it.skip("#397", function () {
-        var clock = sinon.useFakeTimers();
-
-        var cb2 = sinon.spy();
-        var cb1 = sinon.spy(function () {
-            setTimeout(cb2, 0);
-        });
-
-        setTimeout(cb1, 0);
-
-        clock.tick(10);
-        assert(cb1.called);
-        assert(!cb2.called);
-
-        clock.tick(10);
-        assert(cb2.called);
-
-        clock.restore();
-    });
-
     describe("#458", function () {
         if (typeof require("fs").readFileSync !== "undefined") {
             describe("on node", function () {