## Description

During Elasticsearch boot, users get the following message:

> license mode is [trial], currently licensed security realms are [reserved/reserved,file/default_file,native/default_native]

Even if it's technically true (and necessary), it may be confusing for end users since they may expect `[basic]` instead.

## Proposal

Avoid the message reporting the trial license, since the "correct" license level is written again later in the boot process.
x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/authc/Realms.java
+ kerberosRealmNames.toString()
                            + " configured of type ["
                            + identifier.getType()
                            + "], ["
                            + identifier.getType()
                            + "] can only have one such realm "
                            + "configured"
                    );
                }
            }
            realmConfigs.add(config);
        }
        return realmConfigs;
    }
    private static Set<String> findDisabledBasicRealmTypes(List<RealmConfig> realmConfigs) {
        return realmConfigs.stream()
            .filter(rc -> InternalRealms.isBuiltinRealm(rc.type()))
            .filter(rc -> false == rc.enabled())
            .map(RealmConfig::type)
            .collect(Collectors.toUnmodifiableSet());
    }
    private static void logDeprecationForReservedPrefixedRealmNames(List<RealmConfig.RealmIdentifier> realmIdentifiers) {
        if (false == realmIdentifiers.isEmpty()) {
            deprecationLogger.warn(
                DeprecationCategory.SECURITY,
                "realm_name_with_reserved_prefix",
                "Found realm "
                    + (realmIdentifiers.size() == 1 ? "name" : "names")
                    + " with reserved prefix [{}]: [{}]. "
                    + "In a future major release, node will fail to start if any realm names start with reserved prefix.",