@jeremyvdm

I have a problem that prevent me to use composer update and apply a patch there for I found an other way:
I create a jQuerry function that allows me to do what you needed:
here it is:

$(document).ready(function () {
        var blocklang = document.getElementById('block-languageswitcher');
        if (blocklang != null) {
          if (blocklang.hasAttribute("role")) {
            blocklang.removeAttribute("role");
          }
        }
}

jeremyvdm → created an issue.

jeremyvdm → created an issue.