Remove everything marked deprecated before the PCL 1.16 release

[mvieth]

Full list:

cuda/filters/include/pcl/cuda/filters/voxel_grid.h:PCL_DEPRECATED_HEADER(1, 16, "The CUDA VoxelGrid filter does not work. Use the CPU VoxelGrid filter instead.")
cuda/filters/include/pcl/cuda/filters/filter.h:      PCL_DEPRECATED(1, 16, "use bool getFilterLimitsNegative() instead")
filters/include/pcl/filters/voxel_grid.h:      PCL_DEPRECATED(1, 16, "use bool getFilterLimitsNegative() instead")
filters/include/pcl/filters/voxel_grid.h:      PCL_DEPRECATED(1, 16, "use bool getFilterLimitsNegative() instead")
geometry/include/pcl/geometry/boost.h:PCL_DEPRECATED_HEADER(1, 16, "Please include the needed boost headers directly.")
gpu/containers/src/device_memory.cpp:PCL_DEPRECATED(1, 16, "Removed in favour of c++11 atomics")
outofcore/include/pcl/outofcore/boost.h:PCL_DEPRECATED_HEADER(1, 16, "Please include the needed boost headers directly.")
visualization/include/pcl/visualization/boost.h:PCL_DEPRECATED_HEADER(1, 16, "Please include the needed boost headers directly.")
visualization/include/pcl/visualization/area_picking_event.h:        PCL_DEPRECATED(1,16,"This constructor is deprecated!")

Headers with PCL_DEPRECATED_HEADER should be removed. If anything is unclear, feel free to ask.