(from #30296)

Jupyter ships with its own copy of mathjax already.

We remove the installation of the symlink to our copy of mathjax from the nbextensions directory and the corresponding configuration item from the notebook.

See also a related documentation issue in #24367.

CC: @slel @egourgoulhon @jhpalmieri @enriqueartal @kiwifb @antonio-rojas @jcamp0x2a @defeo @EmmanuelCharpentier

Component: user interface

Keywords: sd111

Author: Matthias Koeppe

Branch/Commit: 2d68ed7

Reviewer: Antonio Rojas

Issue created by migration from https://trac.sagemath.org/ticket/31035