I removed the test for ArbitraryHtmlAndMath figuring out whether a sim should have a frame around it, because we've moved all the logic into the StepContent class.  The ArbitraryHtmlAndMath isn't responsible for self-determining that kind of thing.
I removed the test for ArbitraryHtmlAndMath figuring out whether a sim should have a frame around it, because we've moved all the logic into the StepContent class.  The ArbitraryHtmlAndMath isn't responsible for self-determining that kind of thing.

openstax/tutor-js,openstax/tutor-js,openstax/tutor-js,openstax/tutor-js,openstax/tutor-js