remove dead code
[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #7943 from Dhilan007/v3

fix compile error on android.
Merge pull request #7945 from CocosRobot/update_cocosfiles_1409809341

[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #7942 from andyque/deleteRedundantCode

remove dead code