[sample] Remove tinyweb impact test and fix style issue

 Impacted TCs num: New 0, Update 5, Delete: 2
 Unit test Platform: Android
 Unit test result: all tests run well
[wrt][xwalk-2412] Update case description

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Android
Android test result summary: Pass 1, Fail 0, Block 0
[sample] Replace upstream resources with self created

 Impacted TCs num: New 0, Update 2, Delete 0
 Unit test Platform: Android
 Unit test result: Pass 2, Fail 0, Block 0
adjust the tag order to the same with others
Merge pull request #798 from Honry/Honry/sample-remove-tinyweb

[sample] Remove tinyweb impact test and fix style issue
 Rename pic name to keep consistency
Merge pull request #815 from Honry/Honry/sample-replace-upstream-resources

[sample] Replace upstream resources with self created
Merge pull request #808 from wanghongjuan/wanghongjuan/wrt/xwalk-2412

[wrt][xwalk-2412] Update case description