[DOCS] Remove audit log rollover mention from 7.x docs (elastic#70316) (elastic#70324)

Author: jrodewig

x-pack/docs/en/security/auditing/output-logfile.asciidoc

@@ -55,4 +55,3 @@ the https://github.com/elastic/elasticsearch/blob/{branch}/x-pack/plugin/core/sr
 By default, audit information is appended to the
 `<clustername>_audit.json` file located in the standard Elasticsearch `logs` directory
 (typically located at `$ES_HOME/logs`).
-The file is also rotated and archived daily or upon reaching the 1GB file size limit.