Eliminates ruby from the build
Eliminates ruby from the build

It's just eight seconds, but it's not really needed. This goes towards
solving #2498.

tbrowder/doc,MasterDuke17/doc,perl6/doc,MasterDuke17/doc,MasterDuke17/doc,perl6/doc,perl6/doc,MasterDuke17/doc,perl6/doc,perl6/doc,tbrowder/doc,tbrowder/doc,tbrowder/doc