Removed build warning: Two different environments in C++ wrapper

Removed build warning: Two different environments in C++ wrapper

Removed unUsed variable warnings
Removed warnings for printing variables

Change-Id: I5d6ba48df298c91f46ba7388ea355bc6a833a679
Signed-off-by: Abitha Shankar <abitha.s@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/11501
Reviewed-by: Hun-je Yeon <hunje.yeon@samsung.com>
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Chihyun Cho <ch79.cho@samsung.com>
Reviewed-by: Madan Lanka <lanka.madan@samsung.com>