Fix pc2dem.py

contrib/pc2dem/pc2dem.py

@@ -51,6 +51,5 @@ commands.create_dem(args.point_cloud,
                     outdir=outdir,
                     resolution=args.resolution,
                     decimation=1,
-                    max_workers=multiprocessing.cpu_count(),
-                    keep_unfilled_copy=False
+                    max_workers=multiprocessing.cpu_count()
                 )