[Docs] Remove redundant visually hidden "(current)" from pagination controls
https://getbootstrap.com/docs/4.5/components/pagination/ https://v5.getbootstrap.com/docs/5.0/components/pagination/
Remove the <span class="visually-hidden">(current)</span>
where the controls already have aria-current
xref https://github.com/twbs/bootstrap/pull/30079#issuecomment-708260201