[8.x] Logs settings: Remove sample data from default (#202981) (#203010)

# Backport

This will backport the following commits from `main` to `8.x`:
- [Logs settings: Remove sample data from default
(#202981)](#202981)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

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BACKPORT-->

Co-authored-by: Joe Reuter <johannes.reuter@elastic.co>

x-pack/plugins/observability_solution/logs_data_access/common/constants.ts

@@ -5,4 +5,4 @@
  * 2.0.
  */
 
-export const DEFAULT_LOG_SOURCES = ['logs-*-*', 'logs-*', 'filebeat-*', 'kibana_sample_data_logs*'];
+export const DEFAULT_LOG_SOURCES = ['logs-*-*', 'logs-*', 'filebeat-*'];