Old item translation strings for music disc descriptions go unused, confusing resource pack artists

The strings previously used for music disc descriptions before they became data-generated go unused, and had not been removed when the translations were changed to use a block translation instead.

Take for instance, "11":

Making the following translations empty has no affect on music disc item descriptions, only the name. This also does not affect the tool-tip shown when playing a song in a jukebox.

{
  "item.minecraft.music_disc_5": "Music Disc",
  "item.minecraft.music_disc_5.desc": "Samuel Åberg - 5",
  "item.minecraft.music_disc_11": "Music Disc",
  "item.minecraft.music_disc_11.desc": "C418 - 11",
  "item.minecraft.music_disc_13": "Music Disc",
  "item.minecraft.music_disc_13.desc": "C418 - 13",
  "item.minecraft.music_disc_blocks": "Music Disc",
  "item.minecraft.music_disc_blocks.desc": "C418 - blocks",
  "item.minecraft.music_disc_cat": "Music Disc",
  "item.minecraft.music_disc_cat.desc": "C418 - cat",
  "item.minecraft.music_disc_chirp": "Music Disc",
  "item.minecraft.music_disc_chirp.desc": "C418 - chirp",
  "item.minecraft.music_disc_creator": "Music Disc",
  "item.minecraft.music_disc_creator_music_box": "Music Disc",
  "item.minecraft.music_disc_creator_music_box.desc": "Lena Raine - Creator (Music Box)",
  "item.minecraft.music_disc_creator.desc": "Lena Raine - Creator",
  "item.minecraft.music_disc_far": "Music Disc",
  "item.minecraft.music_disc_far.desc": "C418 - far",
  "item.minecraft.music_disc_mall": "Music Disc",
  "item.minecraft.music_disc_mall.desc": "C418 - mall",
  "item.minecraft.music_disc_mellohi": "Music Disc",
  "item.minecraft.music_disc_mellohi.desc": "C418 - mellohi",
  "item.minecraft.music_disc_otherside": "Music Disc",
  "item.minecraft.music_disc_otherside.desc": "Lena Raine - otherside",
  "item.minecraft.music_disc_pigstep": "Music Disc",
  "item.minecraft.music_disc_pigstep.desc": "Lena Raine - Pigstep",
  "item.minecraft.music_disc_precipice": "Music Disc",
  "item.minecraft.music_disc_precipice.desc": "Aaron Cherof - Precipice",
  "item.minecraft.music_disc_relic": "Music Disc",
  "item.minecraft.music_disc_relic.desc": "Aaron Cherof - Relic",
  "item.minecraft.music_disc_stal": "Music Disc",
  "item.minecraft.music_disc_stal.desc": "C418 - stal",
  "item.minecraft.music_disc_strad": "Music Disc",
  "item.minecraft.music_disc_strad.desc": "C418 - strad",
  "item.minecraft.music_disc_wait": "Music Disc",
  "item.minecraft.music_disc_wait.desc": "C418 - wait",
  "item.minecraft.music_disc_ward": "Music Disc",
  "item.minecraft.music_disc_ward.desc": "C418 - ward",
}

Steps to Reproduce:

Apply the following resource pack, and hover of a disc item:

Notes:

This has caused confusion in numerous reports recently. See: MC-274494 MC-272378