fix(test): remove webpack size limit warning (angular#3974)

Author: filipesilva

packages/angular-cli/models/webpack-build-test.js

@@ -71,6 +71,7 @@ const getWebpackTestConfig = function (projectRoot, environment, appConfig, test
 
   return {
     devtool: testConfig.sourcemap ? 'inline-source-map' : 'eval',
+    performance: { hints: false },
     context: projectRoot,
     resolve: {
       extensions: ['.ts', '.js'],