Remove the ARF schematron workaround when there are no applicable checks
Remove the ARF schematron workaround when there are no applicable checks

The workaround helps with old ARF schematron issues, see
http://making-security-measurable.1364806.n2.nabble.com/Xccdf-dev-xccdf-rule-result-element-properties-td7582721.html
However it also causes issues in SCAPVal which expects no check elements
in rule-result if none are applicable.

Resolves issues with SCAPVal requirements 370-1 and 370-2.

OpenSCAP/openscap,mpreisler/openscap,Hexadorsimal/openscap,OpenSCAP/openscap,redhatrises/openscap,jan-cerny/openscap,mpreisler/openscap,OpenSCAP/openscap,mpreisler/openscap,jan-cerny/openscap,redhatrises/openscap,jan-cerny/openscap,Hexadorsimal/openscap,OpenSCAP/openscap,mpreisler/openscap,jan-cerny/openscap,jan-cerny/openscap,OpenSCAP/openscap,redhatrises/openscap,mpreisler/openscap,Hexadorsimal/openscap,jan-cerny/openscap,redhatrises/openscap,mpreisler/openscap,redhatrises/openscap,redhatrises/openscap,Hexadorsimal/openscap,OpenSCAP/openscap,Hexadorsimal/openscap,Hexadorsimal/openscap