Remove page-latest-supported-java-client-new property (#2102)

References to the Java client have already been removed.

Author: JackPGreen

docs/antora.yml

@@ -27,7 +27,6 @@ asciidoc:
     page-latest-supported-mc: '5.10-snapshot'
     page-latest-supported-mc-installer: 'latest-snapshot'
     page-latest-supported-po: 'latest-snapshot'
-    page-latest-supported-java-client-new: '5.5.0-BETA'
     # https://github.com/hazelcast/hazelcast-go-client/releases
     page-latest-supported-go-client: '1.5.0'
     # https://github.com/hazelcast/hazelcast-cpp-client/releases