Fixed compile error in db/column_family.cc
Fixed compile error in db/column_family.cc

Summary:
Fixed the following compile error in db/column_family.cc
    db/column_family.cc:633:33: error: ‘ASSERT_GT’ was not declared in this scope
    16:14:45    ASSERT_GT(listeners.size(), 0U);

Test Plan: make db_test

Reviewers: igor, sdong, rven

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D38367

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