Removing unnecessary logs in message handler.

Removing unnecessary logs in message handler.

The "IN" and "OUT" tags give no useful information
and completely floods the debug mode. All the useful
information is already being logged within the function.

Change-Id: Ieac528913b659fbaccedcb465000f11f370b678a
Signed-off-by: Omkar Hegde <omkar.m.hegde@intel.com>
Signed-off-by: vimala.v <vimala.v@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/1816
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Erich Keane <erich.keane@intel.com>