LunaSysMgr.upstart: Remove outdated comments

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@lge.com>
Change-Id: Idf7dcd6e4079fb435753667c42f715dac390a180
Reviewed-on: https://g2g.palm.com/2135
Reviewed-by: Build Verification
Tested-by: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>