Removed upgrading-samba4.txt
This file was about updating early Samba AD alpha versions.
We describe all important things related to the update process in the Wiki:
https://wiki.samba.org/index.php/Updating_Samba
Signed-off-by: Marc Muehlfeld <mmuehlfeld@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Aug 29 03:28:11 CEST 2016 on sn-devel-144
(cherry picked from commit
38696630552d449ec3c8e1fbdf6fb8212a96d2c9)