onKeyDownHandler = function (event)
        {
            if (_this.matched || !_this.enabled)
            {
                return;
            }

            var matched = ProcessKeyCombo(event, _this);

            if (matched)
            {
                _this.manager.emit(Events.COMBO_MATCH, _this, event);

                if (_this.resetOnMatch)
                {
                    ResetKeyCombo(_this);
                }
                else if (_this.deleteOnMatch)
                {
                    _this.destroy();
                }
            }
        }
If the combo matches, will it delete itself?

@name Phaser.Input.Keyboard.KeyCombo#deleteOnMatch
@type {boolean}
@default false
@since 3.0.0