feat: remove useless CHANGELOG

Signed-off-by: SuZhou-Joe <[email protected]>

CHANGELOG.md

@@ -41,11 +41,6 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - [Multiple Datasource] Add interfaces to register add-on authentication method from plug-in module ([#5851](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5851))
 - [Multiple Datasource] Able to Hide "Local Cluster" option from datasource DropDown ([#5827](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5827))
 - [Multiple Datasource] Add api registry and allow it to be added into client config in data source plugin ([#5895](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5895))
-- [Multiple Datasource] Concatenate data source name with index pattern name and change delimiter to double colon ([#5907](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5907))
-- [Multiple Datasource] Refactor client and legacy client to use authentication registry ([#5881](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5881))
-- [Multiple Datasource] Improved error handling for the search API when a null value is passed for the dataSourceId ([#5882](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5882))
-- [Multiple Datasource] Hide/Show authentication method in multi data source plugin based on configuration ([#5916](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5916))
-- [Workspace] Optional workspaces params in repository ([#5949](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5949))
 
 ### 🐛 Bug Fixes