This reverts commit 87bd69c6.

Thanks for your service! This resolve file was used with s6-rc. The things now are simplier
and flexible.

service Master resolve file is no longer a service incorporate to the DB. It was reorganize to provide mandatory field to be a real Master. This file will now be used to known the global state of the services.

use new name of tree_read_cdb(), tree_resolve_read_master_cdb(), tree_resolve_write_cdb() and tree_resolve_write_master_cdb() function