remove non custom test template for custom-set
remove non custom test template for custom-set

Insti/exercism-ruby,NeimadTL/ruby,exercism/xruby,NeimadTL/ruby,Insti/xruby,Insti/xruby,Insti/exercism-ruby,exercism/xruby,NeimadTL/ruby,Insti/exercism-ruby