SCHWED-3473: Revert round changes. Use C++ version of functions.

modules/config/base.hh

modules/gfx/src/impl/cartoon_renderer.cc

modules/gfx/src/vertex_array.cc

modules/gui/src/data_viewer/drawing_functions.cc

modules/img/alg/src/polar.cc

modules/img/base/src/image_list.cc

modules/img/base/src/point.hh

modules/img/base/src/raster_image/raster_image.cc

modules/info/src/item_type_cast.hh

modules/io/src/formatted_line.hh

modules/io/src/img/map_io_tiff_handler.cc

modules/io/tests/test_mmcif_reader.cc

modules/mol/alg/src/entity_to_density.cc

modules/mol/alg/src/filter_clashes.cc

modules/mol/base/src/spatial_organizer.hh

modules/mol/mm/src/modeller.cc