Delete robots.txt, fix #2880
Delete robots.txt, fix #2880
perl6/doc,MasterDuke17/doc,perl6/doc,tbrowder/doc,perl6/doc,MasterDuke17/doc,tbrowder/doc,perl6/doc,tbrowder/doc,MasterDuke17/doc,perl6/doc,MasterDuke17/doc,tbrowder/doc