chore(*): build-angular karma plugin removal

Author: kdinev

projects/igniteui-angular/karma.conf.js

@@ -17,8 +17,7 @@ module.exports = function (config) {
       'karma-jasmine',
       'karma-coverage',
       'karma-chrome-launcher',
-      'karma-spec-reporter',
-      '@angular-devkit/build-angular/plugins/karma'
+      'karma-spec-reporter'
     ],
     parallelOptions: {
       executors: 3,

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

@@ -16,8 +16,7 @@ module.exports = function (config) {
       require('karma-jasmine'),
       require('karma-coverage'),
       require('karma-chrome-launcher'),
-      require('karma-jasmine-spec-tags'),
-      require('@angular-devkit/build-angular/plugins/karma')
+      require('karma-jasmine-spec-tags')
     ],
     parallelOptions: {
       executors: 2,

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

@@ -13,8 +13,7 @@ module.exports = function (config) {
     plugins: [
         'karma-jasmine',
         'karma-chrome-launcher',
-        'karma-spec-reporter',
-        '@angular-devkit/build-angular/plugins/karma'
+        'karma-spec-reporter'
     ],
     client: {
       clearContext: false, // leave Jasmine Spec Runner output visible in browser