Remove variables from workshops.yaml
Remove variables from workshops.yaml

Liquid variables don't work in YAML files in the _data directory.

wd15/chimad-phase-field,wd15/chimad-phase-field,usnistgov/chimad-phase-field,usnistgov/chimad-phase-field,wd15/chimad-phase-field,usnistgov/chimad-phase-field