remove unused file.
remove unused file.

cjcjameson/gpdb,kaknikhil/gpdb,atris/gpdb,lintzc/gpdb,kaknikhil/gpdb,greenplum-db/gpdb,lpetrov-pivotal/gpdb,tangp3/gpdb,Chibin/gpdb,tangp3/gpdb,ovr/postgres-xl,arcivanov/postgres-xl,rubikloud/gpdb,0x0FFF/gpdb,chrishajas/gpdb,ahachete/gpdb,cjcjameson/gpdb,Postgres-XL/Postgres-XL,lpetrov-pivotal/gpdb,janebeckman/gpdb,rvs/gpdb,pavanvd/postgres-xl,rvs/gpdb,royc1/gpdb,chrishajas/gpdb,tangp3/gpdb,cjcjameson/gpdb,xuegang/gpdb,lisakowen/gpdb,ovr/postgres-xl,pavanvd/postgres-xl,snaga/postgres-xl,lintzc/gpdb,lisakowen/gpdb,lpetrov-pivotal/gpdb,Postgres-XL/Postgres-XL,adam8157/gpdb,pavanvd/postgres-xl,techdragon/Postgres-XL,ashwinstar/gpdb,rubikloud/gpdb,chrishajas/gpdb,yazun/postgres-xl,randomtask1155/gpdb,tpostgres-projects/tPostgres,edespino/gpdb,Quikling/gpdb,atris/gpdb,kaknikhil/gpdb,50wu/gpdb,50wu/gpdb,foyzur/gpdb,greenplum-db/gpdb,tpostgres-projects/tPostgres,0x0FFF/gpdb,rubikloud/gpdb,ovr/postgres-xl,jmcatamney/gpdb,randomtask1155/gpdb,yazun/postgres-xl,atris/gpdb,zaksoup/gpdb,ashwinstar/gpdb,50wu/gpdb,adam8157/gpdb,rvs/gpdb,zeroae/postgres-xl,edespino/gpdb,greenplum-db/gpdb,xuegang/gpdb,CraigHarris/gpdb,greenplum-db/gpdb,royc1/gpdb,jmcatamney/gpdb,CraigHarris/gpdb,xinzweb/gpdb,jmcatamney/gpdb,zaksoup/gpdb,randomtask1155/gpdb,lintzc/gpdb,Quikling/gpdb,xinzweb/gpdb,edespino/gpdb,foyzur/gpdb,janebeckman/gpdb,xuegang/gpdb,0x0FFF/gpdb,kaknikhil/gpdb,edespino/gpdb,techdragon/Postgres-XL,randomtask1155/gpdb,ahachete/gpdb,ahachete/gpdb,ashwinstar/gpdb,oberstet/postgres-xl,0x0FFF/gpdb,ahachete/gpdb,techdragon/Postgres-XL,adam8157/gpdb,atris/gpdb,janebeckman/gpdb,Postgres-XL/Postgres-XL,janebeckman/gpdb,kmjungersen/PostgresXL,postmind-net/postgres-xl,kaknikhil/gpdb,ahachete/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,yuanzhao/gpdb,arcivanov/postgres-xl,50wu/gpdb,yuanzhao/gpdb,lisakowen/gpdb,arcivanov/postgres-xl,janebeckman/gpdb,CraigHarris/gpdb,lpetrov-pivotal/gpdb,CraigHarris/gpdb,atris/gpdb,ashwinstar/gpdb,Chibin/gpdb,Chibin/gpdb,arcivanov/postgres-xl,techdragon/Postgres-XL,xinzweb/gpdb,xinzweb/gpdb,kaknikhil/gpdb,adam8157/gpdb,edespino/gpdb,yazun/postgres-xl,lpetrov-pivotal/gpdb,ashwinstar/gpdb,pavanvd/postgres-xl,janebeckman/gpdb,ashwinstar/gpdb,Quikling/gpdb,lintzc/gpdb,rvs/gpdb,cjcjameson/gpdb,zaksoup/gpdb,postmind-net/postgres-xl,rubikloud/gpdb,cjcjameson/gpdb,jmcatamney/gpdb,postmind-net/postgres-xl,zaksoup/gpdb,rvs/gpdb,snaga/postgres-xl,zaksoup/gpdb,rubikloud/gpdb,royc1/gpdb,lisakowen/gpdb,Quikling/gpdb,lintzc/gpdb,kmjungersen/PostgresXL,tpostgres-projects/tPostgres,yazun/postgres-xl,zeroae/postgres-xl,CraigHarris/gpdb,rubikloud/gpdb,cjcjameson/gpdb,oberstet/postgres-xl,Chibin/gpdb,Chibin/gpdb,CraigHarris/gpdb,rubikloud/gpdb,ashwinstar/gpdb,yazun/postgres-xl,greenplum-db/gpdb,adam8157/gpdb,kaknikhil/gpdb,chrishajas/gpdb,royc1/gpdb,foyzur/gpdb,kaknikhil/gpdb,zeroae/postgres-xl,royc1/gpdb,lintzc/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,janebeckman/gpdb,yuanzhao/gpdb,adam8157/gpdb,Quikling/gpdb,lisakowen/gpdb,jmcatamney/gpdb,lpetrov-pivotal/gpdb,0x0FFF/gpdb,randomtask1155/gpdb,arcivanov/postgres-xl,atris/gpdb,chrishajas/gpdb,oberstet/postgres-xl,Quikling/gpdb,jmcatamney/gpdb,xinzweb/gpdb,Chibin/gpdb,kmjungersen/PostgresXL,Quikling/gpdb,edespino/gpdb,yuanzhao/gpdb,xuegang/gpdb,lintzc/gpdb,jmcatamney/gpdb,rvs/gpdb,snaga/postgres-xl,greenplum-db/gpdb,0x0FFF/gpdb,chrishajas/gpdb,postmind-net/postgres-xl,tangp3/gpdb,yuanzhao/gpdb,royc1/gpdb,xinzweb/gpdb,50wu/gpdb,ahachete/gpdb,foyzur/gpdb,zaksoup/gpdb,xuegang/gpdb,kmjungersen/PostgresXL,Chibin/gpdb,oberstet/postgres-xl,atris/gpdb,randomtask1155/gpdb,arcivanov/postgres-xl,tangp3/gpdb,ahachete/gpdb,xuegang/gpdb,kmjungersen/PostgresXL,zeroae/postgres-xl,xuegang/gpdb,foyzur/gpdb,chrishajas/gpdb,janebeckman/gpdb,janebeckman/gpdb,oberstet/postgres-xl,pavanvd/postgres-xl,adam8157/gpdb,cjcjameson/gpdb,techdragon/Postgres-XL,50wu/gpdb,snaga/postgres-xl,lintzc/gpdb,Quikling/gpdb,edespino/gpdb,lpetrov-pivotal/gpdb,tpostgres-projects/tPostgres,rvs/gpdb,lintzc/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,Chibin/gpdb,lisakowen/gpdb,cjcjameson/gpdb,CraigHarris/gpdb,ovr/postgres-xl,xuegang/gpdb,Postgres-XL/Postgres-XL,zaksoup/gpdb,kaknikhil/gpdb,tangp3/gpdb,zaksoup/gpdb,atris/gpdb,xinzweb/gpdb,lisakowen/gpdb,chrishajas/gpdb,lisakowen/gpdb,Chibin/gpdb,royc1/gpdb,postmind-net/postgres-xl,cjcjameson/gpdb,Chibin/gpdb,ahachete/gpdb,foyzur/gpdb,Quikling/gpdb,Postgres-XL/Postgres-XL,0x0FFF/gpdb,yuanzhao/gpdb,CraigHarris/gpdb,foyzur/gpdb,foyzur/gpdb,50wu/gpdb,rvs/gpdb,rvs/gpdb,rvs/gpdb,edespino/gpdb,tangp3/gpdb,tangp3/gpdb,yuanzhao/gpdb,royc1/gpdb,CraigHarris/gpdb,rubikloud/gpdb,randomtask1155/gpdb,0x0FFF/gpdb,xinzweb/gpdb,greenplum-db/gpdb,edespino/gpdb,yuanzhao/gpdb,adam8157/gpdb,tpostgres-projects/tPostgres,snaga/postgres-xl,50wu/gpdb,janebeckman/gpdb,zeroae/postgres-xl,Quikling/gpdb,lpetrov-pivotal/gpdb,edespino/gpdb,randomtask1155/gpdb,xuegang/gpdb,ovr/postgres-xl