Reduce logging by switching off MOJ_DEBUG build flag

 - Remove MOJ_DEBUG build flag from compiler build flags
 - Correct use of MOJ_DEBUG_LOGGING to MOJ_DEBUG in MojDbIndex.cpp

Open-webOS-DCO-1.0-Signed-off-by: Roger Stringer <roger.stringer@lge.com>

Change-Id: Ic691d419d3d35f29418ebe2be273987a39744808
Reviewed-on: https://g2g.palm.com/2691
Reviewed-by: Build Verification
Tested-by: Roger Stringer <roger.stringer@lge.com>
Reviewed-by: Igor Kuksyuk <ikuksyuk@luxoft.com>
Tested-by: Igor Kuksyuk <ikuksyuk@luxoft.com>
Reviewed-by: Roger Stringer <roger.stringer@lge.com>