Fix a couple of comments to match upstream.
Fix a couple of comments to match upstream.

We don't use CaQL here anymore.

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