remove obsolete phosphor-ldap-mapper

`phosphor-ldap-config` now provides the full functionality of the role
mapper. `phosphor-ldap-mapper` is obsolete and makes confused.

This commit completely removes `phosphor-ldap-mapper`.

Change-Id: I3b62b06395861daa743530ad856fa1fa80b1d427
Signed-off-by: Alexander Filippov <a.filippov@yadro.com>
15 files changed