Register/Delete RER(Remote Event Receiver) for a Document Library using CSOM

var list = clientContext.Web.Lists.GetByTitle("DocumentLibrary");
    clientContext.Load(list, p => p.EventReceivers);
    clientContext.ExecuteQuery();
    string serviceUrl = "~remoteAppUrl/Services/RER.svc";


//Register RER
var receiver = new EventReceiverDefinitionCreationInformation
{
    EventType = EventReceiverType.ItemAdded,
    ReceiverName = "RERItemAdded",
    Synchronization = EventReceiverSynchronization.Synchronous,
    ReceiverUrl = serviceUrl
};
list.EventReceivers.Add(receiver);
clientContext.ExecuteQuery();

//Delete RER
foreach (var er in list.EventReceivers)
{
    if (er.ReceiverName == "RERItemAdded")
    {
        er.DeleteObject();
        clientContext.ExecuteQuery();
        break;
    }
}