Remove legacy bootstrap display classes

This is a follow-up Issue from: !56993 (comment 535291360)

Within our Codebase, there are still a handful of CSS classes used that were deprecated. The current mix of these CSS classes between GitLab-UI and Bootstrap is causing multiple Issues therefore we should clean this up.

What needs to be replaced?

current usage	should be replaced with
d-none	gl-display-none
d-inline-block	gl-display-inline-block
d-block	gl-display-block
d-sm-none	gl-sm-display-none
d-sm-block	gl-sm-block
d-md-block	gl-md-block
d-lg-none	gl-lg-none
d-lg-block	gl-lg-block
d-xl-block	gl-xl-block