they were included instead of being proper subdirs. this doesn't appear
to be necessary for anything at this point.

Change-Id: Ie57285df8e5ea7bd8883bcd42fa6ed62b8e1d54d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>