Remove hidden.yml and hide syntax from config.yml (#21097)
Remove hidden.yml and hide syntax from config.yml (#21097)

andrsd/moose,andrsd/moose,sapitts/moose,lindsayad/moose,dschwen/moose,andrsd/moose,laagesen/moose,laagesen/moose,idaholab/moose,laagesen/moose,andrsd/moose,dschwen/moose,harterj/moose,lindsayad/moose,milljm/moose,harterj/moose,sapitts/moose,lindsayad/moose,lindsayad/moose,idaholab/moose,sapitts/moose,dschwen/moose,andrsd/moose,sapitts/moose,milljm/moose,sapitts/moose,laagesen/moose,milljm/moose,laagesen/moose,milljm/moose,idaholab/moose,idaholab/moose,harterj/moose,milljm/moose,idaholab/moose,lindsayad/moose,harterj/moose,dschwen/moose,dschwen/moose,harterj/moose