[gtk-doc] make: don't dist xml dir. Fixes #580622

[Stefan Kost <stefkost src gnome org>]

commit 42600037ce1f4daa3dd1e1a6f13b9f6e0adf69a6
Author: Stefan Kost <ensonic users sf net>
Date:   Wed Apr 29 14:08:21 2009 +0300

    make: don't dist xml dir. Fixes #580622
    
    Distclean shouldn't remove things that are part of the dist tarball.
---
 gtk-doc.make |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/gtk-doc.make b/gtk-doc.make
index d423389..264a7cb 100644
--- a/gtk-doc.make
+++ b/gtk-doc.make
@@ -180,10 +180,8 @@ endif
 
 dist-hook: dist-check-gtkdoc dist-hook-local
 	mkdir $(distdir)/tmpl
-	mkdir $(distdir)/xml
 	mkdir $(distdir)/html
 	-cp $(srcdir)/tmpl/*.sgml $(distdir)/tmpl
-	-cp $(srcdir)/xml/*.xml $(distdir)/xml
 	cp $(srcdir)/html/* $(distdir)/html
 	-cp $(srcdir)/$(DOC_MODULE).types $(distdir)/
 	-cp $(srcdir)/$(DOC_MODULE)-sections.txt $(distdir)/