Clean up CHANGELOG by removing duplicates

Removed duplicate entries for region property in ModelConfig.

Author: jsonbailey

packages/sdk/server-ai/CHANGELOG.md

@@ -8,8 +8,6 @@ All notable changes to the LaunchDarkly Python AI package will be documented in
 ### Features
 
 * Add region property to ModelConfig ([45707b6](https://github.com/launchdarkly/python-server-sdk-ai/commit/45707b691afc1031992add2d75b1b2fa0313c10a))
-* Add region property to ModelConfig ([219f71b](https://github.com/launchdarkly/python-server-sdk-ai/commit/219f71b80d981ccefe88ba75ad14713713f06d88))
-* Add region property to ModelConfig ([3427d26](https://github.com/launchdarkly/python-server-sdk-ai/commit/3427d2648e9f47226df2772c5a950ce440a5fe2e))
 
 ## [1.0.1](https://github.com/launchdarkly/python-server-sdk-ai/compare/launchdarkly-server-sdk-ai-1.0.0...launchdarkly-server-sdk-ai-1.0.1) (2026-05-19)