conditionalize out note for schema_id_validation

Author: micheleRP

modules/manage/pages/schema-reg/schema-reg-authorization.adoc

@@ -267,10 +267,12 @@ endif::[]
 
 This example creates a role called `SoftwareEng` and assigns it ACLs for both topic and Schema Registry access:
 
+ifndef::env-cloud[]
 [NOTE]
 ====
 Redpanda recommends using the topic naming strategy for Schema Registry subjects, where subjects follow the pattern `<topicName>-key` or `<topicName>-value`. For details, see xref:manage:schema-reg/schema-id-validation.adoc#set-subject-name-strategy-per-topic[Set subject name strategy per topic].
 ====
+endif::[]
 
 [,bash]
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