Remove mocha and jasmine-ajax dependencies (#11813)

lib/extensions/karma.conf.js

@@ -17,8 +17,7 @@ module.exports = function (config) {
             require('karma-chrome-launcher'),
             require('karma-jasmine-html-reporter'),
             require('karma-coverage'),
-            require('@angular-devkit/build-angular/plugins/karma'),
-            require('karma-mocha-reporter')
+            require('@angular-devkit/build-angular/plugins/karma')
         ],
         client: {
             clearContext: false // leave Jasmine Spec Runner output visible in browser
@@ -26,9 +25,6 @@ module.exports = function (config) {
         jasmineHtmlReporter: {
             suppressAll: true // removes the duplicated traces
         },
-        mochaReporter: {
-            ignoreSkipped: process.env.KARMA_IGNORE_SKIPPED === 'true'
-        },
 
         coverageReporter: {
             dir: join(__dirname, '../../coverage/extensions'),
@@ -43,7 +39,7 @@ module.exports = function (config) {
                 }
             }
         },
-        reporters: ['mocha', 'kjhtml'],
+        reporters: ['progress', 'kjhtml'],
         port: 9876,
         colors: true,
         logLevel: constants.LOG_INFO,