remove useBatch in copy
remove useBatch in copy

ralphtheninja/leveldown,MathieuCassagne/leveldown,Level/rocksdb,gastrodia/leveldown,chjj/rocksdown,lastguest/levelup,toddself/levelup,mafintosh/leveldown-prebuilt,timkuijsten/levelup,Level/leveldown-mobile,MathieuCassagne/leveldown,ralphtheninja/leveldown,juliangruber/a-native-module,jmanero/flat-rocks,chjj/rocksdown,MathieuCassagne/leveldown,phillipj/leveldown,phillipj/leveldown,timkuijsten/leveldown,mafintosh/leveldown-prebuilt,phillipj/leveldown,juliangruber/a-native-module,timkuijsten/leveldown,jhead/leveldown,jmanero/flat-rocks,chjj/rocksdown,roppa/levelup,jhead/leveldown,djchie/levelup,snowyu/node-nosql-leveldb,mafintosh/leveldown-prebuilt,JTKnox91/levelup,gastrodia/leveldown,djchie/levelup,gastrodia/leveldown,Level/leveldown,Level/leveldown-mobile,ralphtheninja/leveldown,roppa/levelup,juliangruber/a-native-module,gastrodia/leveldown,jhead/leveldown,Level/leveldown,juliangruber/a-native-module-without-prebuild,jmanero/flat-rocks,juliangruber/a-native-module-without-prebuild,juliangruber/a-native-module,snowyu/node-nosql-leveldb,jmanero/flat-rocks,juliangruber/a-native-module-without-prebuild,mafintosh/leveldown-prebuilt,timkuijsten/levelup,No9/leveldown,jmanero/flat-rocks,phillipj/leveldown,timkuijsten/leveldown,Level/rocksdb,JTKnox91/levelup,MathieuCassagne/leveldown,snowyu/node-nosql-leveldb,Level/leveldown-mobile,jhead/leveldown,Level/leveldown-mobile,No9/leveldown,Level/levelup,timkuijsten/leveldown,timkuijsten/leveldown,Level/rocksdb,No9/leveldown,mafintosh/leveldown-prebuilt,juliangruber/a-native-module-without-prebuild,phillipj/leveldown,snowyu/node-nosql-leveldb,gastrodia/leveldown,No9/leveldown,chjj/rocksdown,ralphtheninja/leveldown,MathieuCassagne/leveldown,lastguest/levelup,Level/leveldown-mobile,snowyu/node-nosql-leveldb,juliangruber/a-native-module-without-prebuild,jhead/leveldown,toddself/levelup,juliangruber/a-native-module,ralphtheninja/leveldown,No9/leveldown,Level/leveldown