TransformationEstimationPointToPlaneLLS without source normals

[jakobwilm]

TransformationEstimationPointToPlaneLLS checks for normals in the source, even though only target normals are needed.

--- transformation_estimation_point_to_plane_lls.hpp.ORG    2013-10-07 15:09:35.000000000 +0200
+++ transformation_estimation_point_to_plane_lls.hpp    2013-10-30 14:09:54.622422896 +0100
@@ -159,9 +159,6 @@
     if (!pcl_isfinite (source_it->x) ||
         !pcl_isfinite (source_it->y) ||
         !pcl_isfinite (source_it->z) ||
-        !pcl_isfinite (source_it->normal_x) ||
-        !pcl_isfinite (source_it->normal_y) ||
-        !pcl_isfinite (source_it->normal_z) ||
         !pcl_isfinite (target_it->x) ||
         !pcl_isfinite (target_it->y) ||
         !pcl_isfinite (target_it->z) ||

[jspricke]

Hi @jakobwilm good point, can you make this a pull request?