Remove the Default bound from SysExMessage::Buffer

CHANGELOG.md

@@ -10,6 +10,13 @@ Since there is no stable release yet, the changes are organized per day in
 reverse chronological order. The main purpose of this document in its current
 state is to list breaking changes.
 
+## [2023-05-13]
+
+### Fixed
+
+- Removed the `Default` bound from the `SysExMessage::Buffer` type. This was a
+  leftover from an older design.
+
 ## [2023-04-30]
 
 ### Changed

src/midi/sysex.rs

@@ -23,7 +23,7 @@ pub trait SysExMessage: Debug + Clone + PartialEq + Send + Sync {
     /// lengths just yet.
     ///
     /// <https://github.com/rust-lang/rust/issues/60551>
-    type Buffer: Default + Borrow<[u8]> + BorrowMut<[u8]>;
+    type Buffer: Borrow<[u8]> + BorrowMut<[u8]>;
 
     /// Read a SysEx message from `buffer` and convert it to this message type if supported. This
     /// covers the full message, see the trait's docstring for more information. `buffer`'s length