removed default preferences from laser_plugin
removed default preferences from laser_plugin

USGSDenverPychron/pychron,NMGRL/pychron,USGSDenverPychron/pychron,NMGRL/pychron,USGSDenverPychron/pychron,NMGRL/pychron,UManPychron/pychron,USGSDenverPychron/pychron,UManPychron/pychron,UManPychron/pychron,UManPychron/pychron,NMGRL/pychron