chore: remove unnecessary comment

src/runtime/internal/transitions.ts

@@ -79,7 +79,6 @@ export function transition_out(block: Fragment, local: 0 | 1, detach?: 0 | 1, ca
 		});
 
 		block.o(local);
-		// fix: destroy non-fragment element such as empty components.
 	} else if (callback) {
 		callback();
 	}