When using rollup, in order to use mathjax in strict mode, remove arguments.callee.

Created by: masx200

Is your feature request related to a problem? Please describe.

When using "rollup", in order to use mathjax in strict mode, remove "arguments.callee".

Because rollup requires modules to use strict mode.

Describe the solution you'd like https://github.com/mathjax/MathJax-src/issues/850

Describe alternatives you've considered

Additional context