Fix outdated SCons build scripts that were broken for WiFi.
Corrected outdated SCons build script that was still referencing the
'NET' environment variable instead of the TARGET_TRANSPORT one that
the CA branch was switched to using.
Removed setup/documentation of the outdated 'NET' option.
Change-Id: I2f22921b290da65d77fccb237b09dd0b6302996d
Signed-off-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/659
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Erich Keane <erich.keane@intel.com>