remove lunastats from service mapping

:Release Notes:
luna-sysmgr no longer provides the com.palm.lunastats service

:Detailed Notes:
com.palm.lunastats has been provided by the webappmanager package
for quite some time. It should not be listed in the luna-sysmgr service
configuration

:Testing Performed:

:QA Notes:

:Issues Addressed:
[GF-13230] Fix LS2 role files for Open webOS

Open-webOS-DCO-1.0-Signed-off-by: Eric Blade <eric.blade@lge.com>

Change-Id: Ie928959948b480a8765c0e9ca14b7f91544dc76c
Reviewed-on: https://g2g.palm.com/3440
Reviewed-by: Build Verification
Reviewed-by: Eric Blade <eric.blade@lge.com>
Tested-by: Eric Blade <eric.blade@lge.com>
Reviewed-by: Roger Stringer <roger.stringer@lge.com>