[devhelp] Remove MAINTAINERS file

[Sébastien Wilmet <swilmet src gnome org>]

commit 0edc9466819b24950e6276f76ccd6f624cd05ca7
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Mar 11 16:18:23 2017 +0100

    Remove MAINTAINERS file
    
    The doap file is sufficient, see the section "Is a MAINTAINERS file
    still needed?" at:
    https://wiki.gnome.org/MaintainersCorner

 MAINTAINERS |   12 ------------
 1 files changed, 0 insertions(+), 12 deletions(-)