Remove mentioning of private keys

Author: NataliaIvakina

modules/ROOT/pages/changes-deprecations-removals.adoc

@@ -188,13 +188,6 @@ a|**link:{neo4j-docs-base-uri}/operations-manual/5/monitoring/metrics/reference/
 
 For more details, refer to the page on link:{neo4j-docs-base-uri}/operations-manual/5/security/ssl-framework/#ssl-other-configs[SSL framework] under the Security section.
 
-.Private keys
-
-Versions before Neo4j 5.0 allow keys to be stored with the old PKCS #1 standard.
-You can identify them by the line `-----BEGIN RSA PRIVATE KEY-----` at the beginning of the file.
-While Neo4j 5.0 can load and use those keys, they are considered deprecated and will be removed in a future version.
-
-
 .SSL-related configuration setting (or move it to the section 'Changed default values'?)
 
 Starting from 2025.01, the default value of `dbms.ssl.policy.*.verify_hostname` is changed from `false` to `true`.