[gupnp-igd] Remove autotools build.

[Olivier Crête <tester src gnome org>]

commit 5bbb8ed91d3782dc586c7c0e8023ca7af72e2d39
Author: Jan Schmidt <jan centricular com>
Date:   Fri Mar 13 23:45:46 2020 +1100

    Remove autotools build.
    
    Switch completely to meson, like GUPnP did already

 INSTALL                         | 237 ----------------------------------------
 Makefile.am                     |  24 ----
 autogen.sh                      |  38 -------
 configure.ac                    |  71 ------------
 doc/Makefile.am                 |  97 ----------------
 gupnp-igd-1.0-uninstalled.pc.in |  12 --
 gupnp-igd-1.0.pc.in             |  12 --
 libgupnp-igd/Makefile.am        |  77 -------------
 m4/as-check-python-headers.m4   |  30 -----
 python/Makefile.am              |  44 --------
 tests/Makefile.am               |   1 -
 tests/examples/Makefile.am      |   9 --
 tests/gtest/Makefile.am         |  19 ----
 13 files changed, 671 deletions(-)