Remove dead code
Remove dead code

Signed-off-by: Marbin Tan <fe9db60e23a06449b90b19d66b721708068089ad@pivotal.io>

greenplum-db/gpdb,xinzweb/gpdb,edespino/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,50wu/gpdb,Quikling/gpdb,jmcatamney/gpdb,adam8157/gpdb,jmcatamney/gpdb,janebeckman/gpdb,janebeckman/gpdb,rvs/gpdb,Quikling/gpdb,cjcjameson/gpdb,Chibin/gpdb,edespino/gpdb,rvs/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,greenplum-db/gpdb,cjcjameson/gpdb,lisakowen/gpdb,50wu/gpdb,xinzweb/gpdb,cjcjameson/gpdb,rvs/gpdb,Chibin/gpdb,rvs/gpdb,ashwinstar/gpdb,janebeckman/gpdb,edespino/gpdb,rvs/gpdb,lisakowen/gpdb,Quikling/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,xinzweb/gpdb,kaknikhil/gpdb,janebeckman/gpdb,Chibin/gpdb,jmcatamney/gpdb,rvs/gpdb,greenplum-db/gpdb,ashwinstar/gpdb,Quikling/gpdb,Chibin/gpdb,Quikling/gpdb,xinzweb/gpdb,rvs/gpdb,rvs/gpdb,Quikling/gpdb,jmcatamney/gpdb,Quikling/gpdb,cjcjameson/gpdb,edespino/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,rvs/gpdb,edespino/gpdb,Quikling/gpdb,greenplum-db/gpdb,Chibin/gpdb,yuanzhao/gpdb,edespino/gpdb,edespino/gpdb,yuanzhao/gpdb,kaknikhil/gpdb,adam8157/gpdb,yuanzhao/gpdb,kaknikhil/gpdb,lisakowen/gpdb,50wu/gpdb,jmcatamney/gpdb,50wu/gpdb,cjcjameson/gpdb,greenplum-db/gpdb,lisakowen/gpdb,kaknikhil/gpdb,rvs/gpdb,50wu/gpdb,xinzweb/gpdb,janebeckman/gpdb,ashwinstar/gpdb,adam8157/gpdb,adam8157/gpdb,adam8157/gpdb,greenplum-db/gpdb,lisakowen/gpdb,lisakowen/gpdb,janebeckman/gpdb,xinzweb/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,Quikling/gpdb,Chibin/gpdb,ashwinstar/gpdb,kaknikhil/gpdb,janebeckman/gpdb,lisakowen/gpdb,cjcjameson/gpdb,edespino/gpdb,jmcatamney/gpdb,Chibin/gpdb,edespino/gpdb,yuanzhao/gpdb,Quikling/gpdb,cjcjameson/gpdb,Chibin/gpdb,janebeckman/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,50wu/gpdb,xinzweb/gpdb,janebeckman/gpdb,ashwinstar/gpdb,50wu/gpdb,edespino/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,lisakowen/gpdb,adam8157/gpdb,janebeckman/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,adam8157/gpdb,greenplum-db/gpdb,Chibin/gpdb,kaknikhil/gpdb,50wu/gpdb,xinzweb/gpdb,jmcatamney/gpdb,adam8157/gpdb,yuanzhao/gpdb,Chibin/gpdb