Remove playwright browser installation

[brichet]

Follow #11

Playwright browser are not automatically installed since v1.38.0.

This broke the build test, because jupyterlab/check_browser does not install it too.

This has been fixed in #11, but the fix should be removed as soon as the jupyterlab/check_browser installs the browser.

[jtpio]

the fix should be removed as soon as the jupyterlab/check_browser installs the browser.

Should we track or directly fix this upstream in JupyterLab?

[brichet]

No sure to understand your question.
We should fix it, but then wait for a release and a backport to v3.5.

[jtpio]

I meant opening an issue in https://github.com/jupyterlab/jupyterlab.

Or directly fix this in https://github.com/jupyterlab/jupyterlab as a PR.

[brichet]

I opened jupyterlab/jupyterlab#15116 and I'm testing a change locally to open a PR.