Music: only /music remove and /music move are commands

Pause, skip, repeat and stop are already buttons on the now-playing message.

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

internal/music/manager.go

@@ -686,23 +686,6 @@ func ToggleRepeatQueue(guildID string) (bool, bool) {
 	return repeatSong, repeatQueue
 }
 
-// RepeatFlags reports whether the current song or the whole queue repeats.
-func RepeatFlags(guildID string) (song, queue bool) { return repeatFlags(guildID) }
-
-// SetRepeat sets the repeat mode directly. At most one of the two applies;
-// asking for both repeats the song.
-func SetRepeat(guildID string, song, queue bool) {
-	if manager == nil {
-		return
-	}
-	gp := getOrCreateGuildPlayer(guildID)
-	manager.mu.Lock()
-	gp.RepeatSong = song
-	gp.RepeatQueue = queue && !song
-	manager.mu.Unlock()
-	syncState(guildID)
-}
-
 func repeatFlags(guildID string) (bool, bool) {
 	if manager == nil {
 		return false, false