Remove unnecessary syscache (caql) lookup.
Remove unnecessary syscache (caql) lookup.

We just looked up the relation with RangeVarGetRelidExtended(). There's
no reason to believe it might've been removed since then, especially
when we just locked it.

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