|webapi| Update xml file and xwalk_common.sh for tct-widget02-w3c-tests

Signed-off-by: Xu, KangX <kangx.xu@intel.com>
Merge pull request #9 from kangxXu/kangxXu/webapi/no-env

|webapi| Update xml file and xwalk_common.sh for tct-widget02-w3c-tests