chore(*): Fix karma config.

Author: MKirova

projects/igniteui-angular-elements/karma.conf.js

@@ -9,8 +9,7 @@ module.exports = function (config) {
       require('karma-jasmine'),
       require('karma-chrome-launcher'),
       require('karma-spec-reporter'),
-      require('karma-coverage'),
-      require('@angular-devkit/build-angular/plugins/karma')
+      require('karma-coverage')
     ],
     client: {
       jasmine: {