[behavior][wrt]mapping legacy tcs

[Detailed commit message (if have)]
Impacted TCs num(approved): New 2, update 0, deleted 0
Unit test platform: [tizen]
Unit test result summary: Pass 2, Fail 0, Blocked 0
Merge pull request #812 from linshen/wrt/shen/gerrit-github

[behavior][wrt][XWALK-1492]mapping legacy tcs
[sample] Remove XML styles

- These style files are not must for the samples, and
  they are from testkit-lite repo under GPL 2.0 License
[sample] Remove trailing space from suite.json
Merge pull request #817 from zqzhang/remove-xsl

[sample] Remove XML styles