[GRASS-git] [OSGeo/grass] bc5228: Fix -Wunused-function compiler warnings (#2163)

[Nicklas Larsson]

  Branch: refs/heads/main
  Home:   https://github.com/OSGeo/grass
  Commit: bc52283c7e0fe1a1dcbb93bc86d9ae2d9192a357
      https://github.com/OSGeo/grass/commit/bc52283c7e0fe1a1dcbb93bc86d9ae2d9192a357
  Author: Nicklas Larsson <n_larsson at yahoo.com>
  Date:   2022-11-16 (Wed, 16 Nov 2022)

  Changed paths:
    M display/d.vect.thematic/local_proto.h
    M display/d.vect.thematic/main.c
    M imagery/i.segment/mean_shift.c
    M imagery/i.segment/region_growing.c
    M include/grass/iostream/pqheap.h
    M lib/cairodriver/graph.c
    M lib/gis/parser_wps.c
    M lib/raster3d/cache1.c
    M lib/vector/Vlib/write_pg.c
    M lib/vector/rtree/split.c
    M raster/r.mapcalc/mapcalc.l

  Log Message:
  -----------
  Fix -Wunused-function compiler warnings (#2163)