[gupnp-igd] meson: Remove private headers from sources

[Olivier Crête <tester src gnome org>]

commit c5256b693e9350dfc46b6fc11ab8d826cb2e6265
Author: Olivier Crête <olivier crete collabora com>
Date:   Wed Mar 18 18:54:02 2020 -0400

    meson: Remove private headers from sources
    
    They confuse gobject-introspection

 libgupnp-igd/meson.build | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/libgupnp-igd/meson.build b/libgupnp-igd/meson.build
index d6eb39b..d2b3639 100644
--- a/libgupnp-igd/meson.build
+++ b/libgupnp-igd/meson.build
@@ -13,9 +13,7 @@ install_headers(headers, subdir: 'gupnp-igd-1.0/libgupnp-igd')
 
 sources = files(
     'gupnp-enum-types.c',
-    'gupnp-enum-types.h',
     'gupnp-simple-igd.c',
-    'gupnp-simple-igd-priv.h',
     'gupnp-simple-igd-thread.c'
 )