Fix bug when pc-sample is zero

opendm/point_cloud.py

@@ -76,12 +76,6 @@ def filter(input_point_cloud, output_point_cloud, standard_deviation=2.5, meank=
         log.ODM_ERROR("{} does not exist. The program will now exit.".format(input_point_cloud))
         sys.exit(1)
 
-    if (standard_deviation <= 0 or meank <= 0) and sample_radius <= 0:
-        log.ODM_INFO("Skipping point cloud filtering")
-        # if using the option `--pc-filter 0`, we need copy input_point_cloud
-        shutil.copy(input_point_cloud, output_point_cloud)
-        return
-
     filters = []
 
     if sample_radius > 0: