[devhelp] build: do not distribute contrib files in tarballs

[Sébastien Wilmet <swilmet src gnome org>]

commit 8fbf651b925b418b9fa7e9560c5b63ec5ddf6784
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Dec 22 13:04:01 2017 +0100

    build: do not distribute contrib files in tarballs
    
    Nowadays it's better to do a git clone.

 Makefile.am         |    2 +-
 configure.ac        |    1 -
 contrib/Makefile.am |    7 -------
 3 files changed, 1 insertions(+), 9 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 430a537..ad4a80f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = po src unit-tests data misc contrib docs
+SUBDIRS = po src unit-tests data misc docs
 
 AM_DISTCHECK_CONFIGURE_FLAGS = \
        --enable-gtk-doc        \
diff --git a/configure.ac b/configure.ac
index 4457dda..2f1809f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -80,7 +80,6 @@ PKG_CHECK_VAR([WEBKITGTK_PREFIX], [webkit2gtk-4.0], [prefix])
 
 AC_CONFIG_FILES([
        Makefile
-       contrib/Makefile
        data/libdevhelp-3.0.pc
        data/Makefile
        data/org.gnome.Devhelp.desktop.in