build: Kill include/libvirt/Makefile.am

Move all the logic to include/Makefile.am, simplify it with a wildcard,
then kill include/libvirt/Makefile.am

include/libvirt/Makefile.am

@@ -1,44 +0,0 @@
-## Process this file with automake to produce Makefile.in
-
-## Copyright (C) 2005-2011, 2013-2015 Red Hat, Inc.
-##
-## This library is free software; you can redistribute it and/or
-## modify it under the terms of the GNU Lesser General Public
-## License as published by the Free Software Foundation; either
-## version 2.1 of the License, or (at your option) any later version.
-##
-## This library is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-## Lesser General Public License for more details.
-##
-## You should have received a copy of the GNU Lesser General Public
-## License along with this library.  If not, see
-## <http://www.gnu.org/licenses/>.
-
-virincdir = $(includedir)/libvirt
-
-virinc_HEADERS = libvirt.h		\
-		 libvirt-common.h	\
-		 libvirt-domain.h \
-		 libvirt-domain-snapshot.h \
-		 libvirt-event.h \
-		 libvirt-host.h \
-		 libvirt-interface.h \
-		 libvirt-network.h \
-		 libvirt-nodedev.h \
-		 libvirt-nwfilter.h \
-		 libvirt-secret.h \
-		 libvirt-storage.h \
-		 libvirt-stream.h \
-		 libvirt-lxc.h		\
-		 libvirt-qemu.h		\
-		 virterror.h
-
-install-exec-hook:
-	$(mkinstalldirs) $(DESTDIR)$(virincdir)
-
-EXTRA_DIST = libvirt-common.h.in
-
-# Temporarily disabled, but we need it for building
-EXTRA_DIST += libvirt-admin.h