Changelog refactoring (open-telemetry#2632)

Author: cijothomas

CHANGELOG.md

@@ -5,7 +5,6 @@
 - Bump msrv to 1.75.0.
 - New experimental feature to use trace\_id & span\_id from spans created through the [tracing](https://crates.io/crates/tracing) crate (experimental_use_tracing_span_context) [#2438](https://github.com/open-telemetry/opentelemetry-rust/pull/2438)
 
-
 ## 0.27.0
 
 Released 2024-Nov-11