func eventBlockRemove(w http.ResponseWriter, r *http.Request, t auth.Token) (err error) {
	if !permission.Check(t, permission.PermEventBlockRemove) {
		return permission.ErrUnauthorized
	}
	uuid := r.URL.Query().Get(":uuid")
	if !bson.IsObjectIdHex(uuid) {
		msg := fmt.Sprintf("uuid parameter is not ObjectId: %s", uuid)
		return &errors.HTTP{Code: http.StatusBadRequest, Message: msg}
	}
	objID := bson.ObjectIdHex(uuid)
	evt, err := event.New(&event.Opts{
		Target: event.Target{Type: event.TargetTypeEventBlock, Value: objID.Hex()},
		Kind:   permission.PermEventBlockRemove,
		Owner:  t,
		CustomData: []map[string]interface{}{
			{"name": "ID", "value": objID.Hex()},
		},
		Allowed: event.Allowed(permission.PermEventBlockReadEvents),
	})
	if err != nil {
		return err
	}
	defer func() { evt.Done(err) }()
	err = event.RemoveBlock(objID)
	if _, ok := err.(*event.ErrActiveEventBlockNotFound); ok {
		return &errors.HTTP{Code: http.StatusNotFound, Message: err.Error()}
	}
	return err
}
func eventBlockRemove(w http.ResponseWriter, r *http.Request, t auth.Token) (err error) {
	if !permission.Check(t, permission.PermEventBlockRemove) {
		return permission.ErrUnauthorized
	}
	uuid := r.URL.Query().Get(":uuid")
	if !bson.IsObjectIdHex(uuid) {
		msg := fmt.Sprintf("uuid parameter is not ObjectId: %s", uuid)
		return &errors.HTTP{Code: http.StatusBadRequest, Message: msg}
	}
	objID := bson.ObjectIdHex(uuid)
	evt, err := event.New(&event.Opts{
		Target: event.Target{Type: event.TargetTypeEventBlock, Value: objID.Hex()},
		Kind:   permission.PermEventBlockRemove,
		Owner:  t,
		CustomData: []map[string]interface{}{
			{"name": "ID", "value": objID.Hex()},
		},
		Allowed: event.Allowed(permission.PermEventBlockReadEvents),
	})
	if err != nil {
		return err
	}
	defer func() { evt.Done(err) }()
	err = event.RemoveBlock(objID)
	if _, ok := err.(*event.ErrActiveEventBlockNotFound); ok {
		return &errors.HTTP{Code: http.StatusNotFound, Message: err.Error()}
	}
	return err
}
// title: remove event block
// path: /events/blocks/{uuid}
// method: DELETE
// responses:
//   200: OK
//   400: Invalid uuid
//   401: Unauthorized
//   404: Active block with provided uuid not found