Revert "DEV: mock the clock"

Revert “DEV: mock the clock”

This reverts commit 8be2ad41b0a1ad3dab2b2647170ab3efd0629ef4.

This was causing erratic test failures.

diff --git a/test/javascripts/acceptance/cakeday-test.js.es6 b/test/javascripts/acceptance/cakeday-test.js.es6
index 8599f2b..5694d80 100644
--- a/test/javascripts/acceptance/cakeday-test.js.es6
+++ b/test/javascripts/acceptance/cakeday-test.js.es6
@@ -1,18 +1,8 @@
 import { acceptance } from "helpers/qunit-helpers";
 
 const DATE = moment("2016-11-21");
-let clock;
 
 acceptance("Cakeday", {
-  beforeEach: function() {
-    clock = sinon.useFakeTimers({
-      now: DATE.toDate().getTime(),
-      shouldAdvanceTime: true
-    });
-  },
-  afterEach: function() {
-    clock.restore();
-  },
   loggedIn: true,
   settings: {
     cakeday_enabled: true,

GitHub sha: 7d068a94