3% speed up in EratSmall.cpp, removed dependencies
3% speed up in EratSmall.cpp, removed dependencies

tempbottle/primesieve,ZahidDev/primesieve,anatoliyrazin/primesieve,fredwang00/primesieve,ZahidDev/primesieve,anatoliyrazin/primesieve,kimwalisch/primesieve,kimwalisch/primesieve,tempbottle/primesieve,fredwang00/primesieve,fredwang00/primesieve,ZahidDev/primesieve,tempbottle/primesieve,kimwalisch/primesieve,anatoliyrazin/primesieve