[Build] Remove unused variables from specs

...to satisfy JSHint.

platform/features/table/test/controllers/MCTTableControllerSpec.js

@@ -34,14 +34,6 @@ define(
                 mockTimeout,
                 mockElement;
 
-            function promise(value) {
-                return {
-                    then: function (callback){
-                        return promise(callback(value));
-                    }
-                };
-            }
-
             beforeEach(function() {
                 watches = {};
 

platform/features/table/test/controllers/TableOptionsControllerSpec.js

@@ -32,14 +32,6 @@ define(
                 controller,
                 mockScope;
 
-            function promise(value) {
-                return {
-                    then: function (callback){
-                        return promise(callback(value));
-                    }
-                };
-            }
-
             beforeEach(function() {
                 mockCapability = jasmine.createSpyObj('mutationCapability', [
                     'listen'

platform/features/table/test/controllers/TelemetryTableControllerSpec.js

@@ -130,8 +130,6 @@ define(
 
                 it('to create column configuration, which is written to the' +
                     ' object model', function() {
-                    var mockModel = {};
-
                     controller.setup();
                     expect(mockTable.getColumnConfiguration).toHaveBeenCalled();
                     expect(mockTable.saveColumnConfiguration).toHaveBeenCalled();