With commit 'Move libweston-desktop into libweston' we've moved out
libweston-desktop DSO into libweston. Move also the header to
libweston/desktop.
This removes removes the libweston-desktop pc file and bumps libweston
major version to 12.
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
It's not really useful to have libweston without libweston-desktop. It's
also very little code.
Merging both into the same DSO will allow us to cut out a bunch of
indirection and pain.
Signed-off-by: Daniel Stone <daniels@collabora.com>