Revert C++11-related features
Revert C++11-related features

Crowndev/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,domob1812/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,domob1812/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,Crowndev/crowncoin,Crowndev/crowncoin,domob1812/crowncoin