tizen: Remove the build macro for RELEASE flag

tizen: Remove the build macro for RELEASE flag

(tizen_build_binary_release_type_eng)

 - always enable RELEASE to TRUE

Change-Id: Iac9caa72d6747e65f73040eeea7046bd462d251f
Bug: https://jira.iotivity.org/browse/IOT-1320
Author: Jooseok Park <jooseok.park@samsung.com>
Origin: https://review.tizen.org/gerrit/#/c/86784/
Signed-off-by: Philippe Coval <philippe.coval@osg.samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/12433
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jooseok Park <jooseok.park@samsung.com>