Sensitive information is already being redacted from diagnostics

the troubleshooting guide needs to be updated due to this merge: elastic/elastic-agent#566

docs/en/ingest-management/troubleshooting/troubleshooting.asciidoc

@@ -309,9 +309,6 @@ This archive collects the following information:
 
 Note that the diagnostics bundle is intended for debugging purposes only, its structure may change between releases.
 
-IMPORTANT: The configuration files in the archive may have credentials in *plain text*.
-These will need to be manually redacted before the archive is shared.
-
 [discrete]
 [[not-installing-no-logs-in-terminal]]
 == Some problems occur so early that insufficient logging is available