Remove unnecessary flags in script files when building iotivity & easy setup targeted...

Remove unnecessary flags in script files when building iotivity & easy setup targeted to Tizen.
Also remove unused tizen script files.
In addtion, security related function is activated in Tizen Enrolle Sample App. (which was commented before)
Tested on Tizen Mobile Z3, and it works well.

Change-Id: If70424c31949aa22210b64c45003983ea56a8594
Signed-off-by: sy01.youn <sy01.youn@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/10833
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Madan Lanka <lanka.madan@samsung.com>