[network-manager-applet] Drop libnma docs

[Thomas Haller <thaller src gnome org>]

commit cb7cbfdc758c45cc8cdbf6baacf404495a6dc7e3
Author: Jan Tojnar <jtojnar gmail com>
Date:   Mon Mar 16 12:46:23 2020 +0100

    Drop libnma docs
    
    These seem to have been forgotten during migration.
    
    https://gitlab.gnome.org/GNOME/network-manager-applet/-/merge_requests/79

 Makefile.am           |  1 -
 gtkdocentities.ent.in |  7 -----
 libnma-docs.xml       | 79 ---------------------------------------------------
 3 files changed, 87 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 495594e5..ed2af8c2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -599,7 +599,6 @@ EXTRA_DIST += \
        meson_options.txt \
        meson_post_install.py \
        config.h.meson \
-       gtkdocentities.ent.in \
        \
        po/meson.build