remove unneeded files
Merge pull request #7931 from CocosRobot/update_lua_bindings_1409714881

[AUTO]: updating luabinding automatically
[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #7933 from CocosRobot/update_cocosfiles_1409717115

[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #7932 from minggo/remove-unneeded-files

remove unneeded files