移除渠道管理

app/admin/lang/en/auth/admin.php

@@ -2,6 +2,4 @@
 return [
     'Group Name Arr'                                                           => 'Administrator Grouping ',
     'Please use another administrator account to disable the current account!' => 'Disable the current account, please use another administrator account!',
-    'Please select channel'                                                   => 'Please select channel',
-    'Current admin has no channel bound'                                      => 'Current admin has no channel bound',
 ];

app/admin/lang/zh-cn/auth/admin.php

@@ -3,6 +3,4 @@ return [
     'Group Name Arr'                                                           => '管理员分组',
     'Please use another administrator account to disable the current account!' => '请使用另外的管理员账户禁用当前账户！',
     'You have no permission to add an administrator to this group!'            => '您没有权限向此分组添加管理员！',
-    'Please select channel'                                                   => '请选择渠道',
-    'Current admin has no channel bound'                                      => '当前管理员未绑定渠道',
 ];