chore: Remove stray eprintln (#28014)

Closes #ISSUE

Release Notes:

- N/A

crates/multi_buffer/src/multi_buffer.rs

@@ -2399,7 +2399,6 @@ impl MultiBuffer {
         let buffer_id = diff.buffer_id;
         let buffers = self.buffers.borrow();
         let Some(buffer_state) = buffers.get(&buffer_id) else {
-            eprintln!("no buffer");
             return;
         };