Users, who belong to the deleted group will automatically get the
0 Group Key. This means they will be assigned to 'None' (default) group.
The following are the examples of HTTP status codes including errors that API can generate
|Response codes||Response content||Description|
|200 OK||The group has been deleted successfully.|
|403 Forbidden||Access denied||Access to the group is denied.|
|404 Not Found||Object not found||The group with the specified ID wasn't found.|