Color contrast: the Edit Comment screen "Status" box labels

[afercia]

See related #31713, #35659 and #35622.

In the "Edit Comment" screen, the "Status" box has three radio buttons with colored labels. The current orange and red don't have a sufficient color contrast ratio of at least 4.5:1.

Quickly ​discussed on the Slack design channel and agreed to simply remove the colors, see screenshot below.

Worth noting orange it's basically impossible to contrast with a white background unless it's turned to a nearly-red or nearly-brown color. Also, it was pointed out the current red "Spam" is competing with the red "Move to Trash" below.

[afercia]

The proposed patch just removes the colors.

Note: as far as I can tell, the #poststuff .inside label.deleted is not used in core, it was introduced during the work to introduce the "Trash" status on #4529 where at some point the deleted comments were still editable and the Status box had a 4th radio button. See the first patches on that ticket.

[rachelbaker]

Patch looks good.

[afercia]

In 37611:

Accessibility: improve the color contrast in the Edit Comment "Status" box.

The current orange and red used for the radio button labels in the Edit Comment
"Status" box don't have a sufficient color contrast ratio with the background.
Removing the colors improves accessibility and consistency.

See #35659, #35622.
Fixes #36967.