MT#57605 Remove username indication in registered devices

This commit partially revert b9c132080

Username was get as expansion of the subscriber_id during the
API calll that gets the subscriber's registrations.
In case of simple subscriber, not admin, this feature is not
supported and not implemented in the API.

Change-Id: I930b3f3935a4cf9618d030fb9868ac52120fafbb

src/pages/CscPageRegisteredDevices.vue

@@ -85,14 +85,6 @@ export default {
                     field: row => row.id,
                     sortable: true
                 },
-                {
-                    name: 'username',
-                    required: true,
-                    label: this.$t('Username'),
-                    align: 'left',
-                    field: row => row.subscriber_id_expand.username,
-                    sortable: true
-                },
                 {
                     name: 'user_agent',
                     required: true,

src/store/user.js

@@ -389,7 +389,7 @@ export default {
         async loadSubscriberRegistrations ({ commit, dispatch, state, rootGetters }, options) {
             try {
                 const list = await getSubscriberRegistrations({
-                    ...options, ...{ expand: 'subscriber_id' }
+                    ...options
                 })
                 commit('setSubscriberRegistrations', list.items)
                 return list.totalCount