updating the logstash migration example (#11201)

* updating the logstash migration example

Signed-off-by: Anton Rubin <[email protected]>

* removing the migration from logstash page

Signed-off-by: Anton Rubin <[email protected]>

---------

Signed-off-by: Anton Rubin <[email protected]>

Author: AntonEliatra

_data-prepper/getting-started.md

@@ -151,8 +151,6 @@ Trace analytics is an important Data Prepper use case. If you haven't yet config
 
 Log ingestion is also an important Data Prepper use case. To learn more, see [Log analytics]({{site.url}}{{site.baseurl}}/data-prepper/common-use-cases/log-analytics/).
 
-To learn how to run Data Prepper with a Logstash configuration, see [Migrating from Logstash]({{site.url}}{{site.baseurl}}/data-prepper/migrating-from-logstash-data-prepper/).
-
 For information on how to monitor Data Prepper, see [Monitoring]({{site.url}}{{site.baseurl}}/data-prepper/managing-data-prepper/monitoring/).
 
 ## More examples

_data-prepper/index.md

@@ -10,6 +10,7 @@ redirect_from:
   - /clients/data-prepper/index/
   - /monitoring-plugins/trace/data-prepper/
   - /data-prepper/index/
+  - /data-prepper/migrating-from-logstash-data-prepper/
 ---
 
 # OpenSearch Data Prepper