test(common): remove redundant line from karma config (angular#31609)

The files in the pattern do not exist.

PR Close angular#31609

Author: petebacondarwin

karma-js.conf.js

@@ -64,7 +64,6 @@ module.exports = function(config) {
         included: false,
         watched: false,
       },
-      {pattern: 'packages/common/i18n/**', included: false, watched: false, served: true},
     ],
 
     exclude: [