We don't have Windows presubmit coverage so this slipped through with
the change to add DisplayEGL.

See: "Reland "Instantiate rx::DisplayEGL when device type EGL is selected"

Bug: angleproject:4328
Change-Id: I68f9e77b7b38fca86cf30a247f33543e4157e73f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2102952Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Julien Isorce <julien.isorce@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>