Update changelog to reflect the revert (#2688)

Author: joewyz

CHANGELOG.md

@@ -5,7 +5,6 @@
 ### Bug Fixes
 
 * Fixed incorrect operation name in URI for `NonQueryCompatibleOperation`. ([#2684](https://github.com/smithy-lang/smithy/pull/2684/))
-* Fixed jsonName conversion for OpenAPI examples. ([#2666](https://github.com/smithy-lang/smithy/pull/2666))
 * Fixed incorrect property name in protocol test bodies. ([#2686](https://github.com/smithy-lang/smithy/pull/2686))
 
 ## 1.60.2 (2025-06-26)