#8984: Removes unused codes in CCStdC-linux.cpp
Merge pull request #9193 from pipu/v3_flatbuffers

V3 flatbuffers
[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #9217 from CocosRobot/update_cocosfiles_1416822877

[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #9207 from dumganhar/iss8984-remove-unused

#8984: Removes unused codes in CCStdC-linux.cpp