Fixing global leak for 'timer'

spec/core/ClockSpec.js

@@ -341,24 +341,4 @@ describe("Clock (acceptance)", function() {
     clock.tick();
     expect(delayedFn2).toHaveBeenCalled();
   });
-
-  it("calls the global clearTimeout correctly when not installed", function() {
-    var delayedFunctionScheduler = jasmine.createSpyObj('delayedFunctionScheduler', ['clearTimeout']),
-      global = jasmine.getGlobal(),
-      clock = new j$.Clock(global, delayedFunctionScheduler);
-
-    expect(function() {
-      clock.clearTimeout(123)
-    }).not.toThrow();
-  });
-
-  it("calls the global clearTimeout correctly when not installed", function() {
-    var delayedFunctionScheduler = jasmine.createSpyObj('delayedFunctionScheduler', ['clearTimeout']),
-      global = jasmine.getGlobal(),
-      clock = new j$.Clock(global, delayedFunctionScheduler);
-
-    expect(function() {
-      clock.clearInterval(123)
-    }).not.toThrow();
-  });
 });

src/core/Clock.js

@@ -13,7 +13,8 @@ getJasmineRequireObj().Clock = function() {
         setInterval: setInterval,
         clearInterval: clearInterval
       },
-      installed = false;
+      installed = false,
+      timer;
 
     self.install = function() {
       replace(global, fakeTimingFunctions);