Remove two unnecessary blank lines in db/db_test.cc
Remove two unnecessary blank lines in db/db_test.cc

JohnPJenkins/rocksdb,sorphi/rocksdb,Applied-Duality/rocksdb,kaschaeffer/rocksdb,siddhartharay007/rocksdb,facebook/rocksdb,JoeWoo/rocksdb,hobinyoon/rocksdb,caijieming-baidu/rocksdb,flabby/rocksdb,wlqGit/rocksdb,makelivedotnet/rocksdb,dkorolev/rocksdb,SunguckLee/RocksDB,norton/rocksdb,luckywhu/rocksdb,tizzybec/rocksdb,Applied-Duality/rocksdb,kaschaeffer/rocksdb,facebook/rocksdb,facebook/rocksdb,anagav/rocksdb,IMCG/RcoksDB,tizzybec/rocksdb,Vaisman/rocksdb,kaschaeffer/rocksdb,lgscofield/rocksdb,sorphi/rocksdb,virtdb/rocksdb,fengshao0907/rocksdb,JackLian/rocksdb,geraldoandradee/rocksdb,virtdb/rocksdb,temicai/rocksdb,norton/rocksdb,alihalabyah/rocksdb,dkorolev/rocksdb,hobinyoon/rocksdb,jalexanderqed/rocksdb,OverlordQ/rocksdb,tizzybec/rocksdb,OverlordQ/rocksdb,biddyweb/rocksdb,SunguckLee/RocksDB,JoeWoo/rocksdb,geraldoandradee/rocksdb,rDSN-Projects/rocksdb.replicated,fengshao0907/rocksdb,caijieming-baidu/rocksdb,luckywhu/rocksdb,temicai/rocksdb,Applied-Duality/rocksdb,ylong/rocksdb,rDSN-Projects/rocksdb.replicated,tizzybec/rocksdb,JohnPJenkins/rocksdb,luckywhu/rocksdb,bbiao/rocksdb,wat-ze-hex/rocksdb,rDSN-Projects/rocksdb.replicated,luckywhu/rocksdb,Applied-Duality/rocksdb,mbarbon/rocksdb,Andymic/rocksdb,alihalabyah/rocksdb,sorphi/rocksdb,vashstorm/rocksdb,RyanTech/rocksdb,Andymic/rocksdb,wat-ze-hex/rocksdb,zhangpng/rocksdb,Andymic/rocksdb,fengshao0907/rocksdb,tsheasha/rocksdb,facebook/rocksdb,amyvmiwei/rocksdb,zhangpng/rocksdb,wat-ze-hex/rocksdb,IMCG/RcoksDB,vmx/rocksdb,makelivedotnet/rocksdb,JoeWoo/rocksdb,wlqGit/rocksdb,wenduo/rocksdb,bbiao/rocksdb,wskplho/rocksdb,bbiao/rocksdb,amyvmiwei/rocksdb,biddyweb/rocksdb,wlqGit/rocksdb,siddhartharay007/rocksdb,JackLian/rocksdb,IMCG/RcoksDB,anagav/rocksdb,amyvmiwei/rocksdb,Andymic/rocksdb,zhangpng/rocksdb,amyvmiwei/rocksdb,ryneli/rocksdb,Vaisman/rocksdb,Vaisman/rocksdb,JoeWoo/rocksdb,wlqGit/rocksdb,Applied-Duality/rocksdb,wlqGit/rocksdb,wlqGit/rocksdb,geraldoandradee/rocksdb,virtdb/rocksdb,wenduo/rocksdb,wskplho/rocksdb,bbiao/rocksdb,makelivedotnet/rocksdb,lgscofield/rocksdb,flabby/rocksdb,mbarbon/rocksdb,NickCis/rocksdb,rDSN-Projects/rocksdb.replicated,amyvmiwei/rocksdb,ylong/rocksdb,tsheasha/rocksdb,OverlordQ/rocksdb,fengshao0907/rocksdb,RyanTech/rocksdb,virtdb/rocksdb,Vaisman/rocksdb,Andymic/rocksdb,fengshao0907/rocksdb,geraldoandradee/rocksdb,wat-ze-hex/rocksdb,Applied-Duality/rocksdb,fengshao0907/rocksdb,vmx/rocksdb,JohnPJenkins/rocksdb,RyanTech/rocksdb,ylong/rocksdb,amyvmiwei/rocksdb,mbarbon/rocksdb,Vaisman/rocksdb,OverlordQ/rocksdb,skunkwerks/rocksdb,sorphi/rocksdb,alihalabyah/rocksdb,jalexanderqed/rocksdb,vmx/rocksdb,tsheasha/rocksdb,IMCG/RcoksDB,skunkwerks/rocksdb,mbarbon/rocksdb,tsheasha/rocksdb,fengshao0907/rocksdb,wenduo/rocksdb,kaschaeffer/rocksdb,vmx/rocksdb,siddhartharay007/rocksdb,flabby/rocksdb,JackLian/rocksdb,alihalabyah/rocksdb,jalexanderqed/rocksdb,sorphi/rocksdb,NickCis/rocksdb,norton/rocksdb,luckywhu/rocksdb,amyvmiwei/rocksdb,SunguckLee/RocksDB,ylong/rocksdb,anagav/rocksdb,flabby/rocksdb,OverlordQ/rocksdb,wenduo/rocksdb,ryneli/rocksdb,caijieming-baidu/rocksdb,facebook/rocksdb,JohnPJenkins/rocksdb,mbarbon/rocksdb,hobinyoon/rocksdb,makelivedotnet/rocksdb,ylong/rocksdb,wskplho/rocksdb,wskplho/rocksdb,zhangpng/rocksdb,SunguckLee/RocksDB,norton/rocksdb,ryneli/rocksdb,caijieming-baidu/rocksdb,wat-ze-hex/rocksdb,alihalabyah/rocksdb,kaschaeffer/rocksdb,skunkwerks/rocksdb,Vaisman/rocksdb,mbarbon/rocksdb,skunkwerks/rocksdb,hobinyoon/rocksdb,Andymic/rocksdb,JohnPJenkins/rocksdb,skunkwerks/rocksdb,luckywhu/rocksdb,IMCG/RcoksDB,IMCG/RcoksDB,SunguckLee/RocksDB,temicai/rocksdb,virtdb/rocksdb,makelivedotnet/rocksdb,JoeWoo/rocksdb,jalexanderqed/rocksdb,RyanTech/rocksdb,flabby/rocksdb,JoeWoo/rocksdb,Andymic/rocksdb,bbiao/rocksdb,RyanTech/rocksdb,RyanTech/rocksdb,dkorolev/rocksdb,JackLian/rocksdb,flabby/rocksdb,rDSN-Projects/rocksdb.replicated,lgscofield/rocksdb,IMCG/RcoksDB,luckywhu/rocksdb,lgscofield/rocksdb,Applied-Duality/rocksdb,flabby/rocksdb,ryneli/rocksdb,dkorolev/rocksdb,JackLian/rocksdb,sorphi/rocksdb,rDSN-Projects/rocksdb.replicated,SunguckLee/RocksDB,vashstorm/rocksdb,temicai/rocksdb,JohnPJenkins/rocksdb,OverlordQ/rocksdb,dkorolev/rocksdb,vmx/rocksdb,caijieming-baidu/rocksdb,vashstorm/rocksdb,jalexanderqed/rocksdb,ryneli/rocksdb,wenduo/rocksdb,norton/rocksdb,dkorolev/rocksdb,NickCis/rocksdb,skunkwerks/rocksdb,vashstorm/rocksdb,hobinyoon/rocksdb,wlqGit/rocksdb,tizzybec/rocksdb,facebook/rocksdb,wat-ze-hex/rocksdb,virtdb/rocksdb,norton/rocksdb,lgscofield/rocksdb,lgscofield/rocksdb,tizzybec/rocksdb,hobinyoon/rocksdb,anagav/rocksdb,alihalabyah/rocksdb,kaschaeffer/rocksdb,JohnPJenkins/rocksdb,caijieming-baidu/rocksdb,JackLian/rocksdb,facebook/rocksdb,hobinyoon/rocksdb,siddhartharay007/rocksdb,tsheasha/rocksdb,virtdb/rocksdb,RyanTech/rocksdb,temicai/rocksdb,caijieming-baidu/rocksdb,tsheasha/rocksdb,Vaisman/rocksdb,wat-ze-hex/rocksdb,ylong/rocksdb,vmx/rocksdb,wat-ze-hex/rocksdb,vmx/rocksdb,alihalabyah/rocksdb,temicai/rocksdb,makelivedotnet/rocksdb,biddyweb/rocksdb,jalexanderqed/rocksdb,bbiao/rocksdb,norton/rocksdb,temicai/rocksdb,biddyweb/rocksdb,zhangpng/rocksdb,geraldoandradee/rocksdb,hobinyoon/rocksdb,zhangpng/rocksdb,kaschaeffer/rocksdb,wenduo/rocksdb,mbarbon/rocksdb,siddhartharay007/rocksdb,vashstorm/rocksdb,JoeWoo/rocksdb,norton/rocksdb,anagav/rocksdb,siddhartharay007/rocksdb,anagav/rocksdb,tizzybec/rocksdb,skunkwerks/rocksdb,ylong/rocksdb,JackLian/rocksdb,jalexanderqed/rocksdb,tsheasha/rocksdb,NickCis/rocksdb,facebook/rocksdb,OverlordQ/rocksdb,geraldoandradee/rocksdb,biddyweb/rocksdb,lgscofield/rocksdb,bbiao/rocksdb,NickCis/rocksdb,dkorolev/rocksdb,makelivedotnet/rocksdb,ryneli/rocksdb,wenduo/rocksdb,vmx/rocksdb,Andymic/rocksdb,SunguckLee/RocksDB,NickCis/rocksdb,rDSN-Projects/rocksdb.replicated,wskplho/rocksdb,zhangpng/rocksdb,NickCis/rocksdb,biddyweb/rocksdb,anagav/rocksdb,SunguckLee/RocksDB,wenduo/rocksdb,ryneli/rocksdb,geraldoandradee/rocksdb,vashstorm/rocksdb,wskplho/rocksdb,wskplho/rocksdb,sorphi/rocksdb,bbiao/rocksdb,siddhartharay007/rocksdb,tsheasha/rocksdb,vashstorm/rocksdb,biddyweb/rocksdb