remove dead Writer.cpp file in sqlite driver
remove dead Writer.cpp file in sqlite driver

lucadelu/PDAL,mtCarto/PDAL,DougFirErickson/PDAL,DougFirErickson/PDAL,mpgerlek/PDAL-old,DougFirErickson/PDAL,radiantbluetechnologies/PDAL,radiantbluetechnologies/PDAL,radiantbluetechnologies/PDAL,lucadelu/PDAL,mtCarto/PDAL,mtCarto/PDAL,Sciumo/PDAL,Sciumo/PDAL,lucadelu/PDAL,jwomeara/PDAL,boundlessgeo/PDAL,mpgerlek/PDAL-old,jwomeara/PDAL,lucadelu/PDAL,boundlessgeo/PDAL,jwomeara/PDAL,radiantbluetechnologies/PDAL,Sciumo/PDAL,jwomeara/PDAL,mpgerlek/PDAL-old,boundlessgeo/PDAL,Sciumo/PDAL,mtCarto/PDAL,DougFirErickson/PDAL,mpgerlek/PDAL-old,boundlessgeo/PDAL