Revert "Add the instrument names to the MIDI channel selector (#38083)"

This reverts commit e16c03ed29.

Content.Shared.Database/LogType.cs

@@ -475,10 +475,5 @@ public enum LogType
     /// <summary>
     /// Damaging grid collision has occurred.
     /// </summary>
-    ShuttleImpact = 102,
-
-    /// <summary>
-    /// Events relating to midi playback.
-    /// </summary>
-    Instrument = 103,
+    ShuttleImpact = 102
 }