Remove deprecated stuff before PCL 1.13.0 release

[mvieth]

trafficstars

cmake/pcl_find_vtk.cmake:					  "Support of the deprecated backend will be dropped with PCL 1.13.")
common/include/pcl/make_shared.h:PCL_DEPRECATED_HEADER(1, 13, "Use <pcl/memory.h> instead.")
common/include/pcl/point_traits.h:PCL_DEPRECATED_HEADER(1, 13, "Use <pcl/type_traits.h> instead.")
filters/include/pcl/filters/passthrough.h:      PCL_DEPRECATED(1, 13, "use inherited FilterIndices::setNegative() instead")
filters/include/pcl/filters/passthrough.h:      PCL_DEPRECATED(1, 13, "use inherited FilterIndices::getNegative() instead")
filters/include/pcl/filters/impl/crop_hull.hpp:PCL_DEPRECATED(1, 13, "This is a trivial call to base class method")
registration/include/pcl/registration/bfgs.h:  PCL_DEPRECATED(1, 13, "Use `testGradient()` instead")
visualization/include/pcl/visualization/vtk/vtkVertexBufferObjectMapper.h:class PCL_DEPRECATED(1, 13, "The OpenGL backend of VTK is deprecated. Please switch to the OpenGL2 backend.")
visualization/include/pcl/visualization/vtk/vtkVertexBufferObject.h:class PCL_DEPRECATED(1, 13, "The OpenGL backend of VTK is deprecated. Please switch to the OpenGL2 backend.")

[HariVamsiK]

Hi I wish to contribute on this issue. Please assign me this. Thanks

[mvieth]

@HariVamsiK Great that you want to contribute to PCL! However, someone else is already working on this issue. Maybe you would like to take a look at these other issues: https://github.com/PointCloudLibrary/pcl/issues/3774 and https://github.com/PointCloudLibrary/pcl/issues/2460