Simplify & cleanup some test task definitions (#6798)
Simplify & cleanup some test task definitions (#6798)

Simplify test task definitions

If you're not interested in the task results, don't ask for them. That
way you don't have to work around discarding them too!

Remove testRest, which had been added when we were running 
into time limits,  but we no longer are.

martijnhoekstra/scala,martijnhoekstra/scala,lrytz/scala,martijnhoekstra/scala,lrytz/scala,scala/scala,lrytz/scala,scala/scala,martijnhoekstra/scala,scala/scala,martijnhoekstra/scala,lrytz/scala,lrytz/scala,lrytz/scala,scala/scala,martijnhoekstra/scala,scala/scala,scala/scala