Revert "stream_{bluray,cdda,dvdnav}: deprecate setting device after schema"

This reverts part of PR #15899 (commit dd6e3a0ece).

"Why is this even useful?": It's very useful for multi-disc playlists. Compare:
`mpv bd:///DISC{1..4}`
`mpv -\{ bd:// --bluray-device=DISC1 -\} -\{ bd:// --bluray-device=DISC2 -\} -\{ bd:// --bluray-device=DISC3 -\} -\{ bd:// --bluray-device=DISC4 -\}`

DOCS/interface-changes/optical-device.txt

@@ -1 +0,0 @@
-specifying an optical device after the schema for the `cdda://`, `dvd://` and `bd://` protocols is deprecated, use the appropriate option (`--cdda-device`) instead