'unsupported' is not a valid jboss.api value upstream

$git grep unsupported -- feature-pack/src/main/resources/modules/system/layers/base/
feature-pack/src/main/resources/modules/system/layers/base/io/undertow/js/main/module.xml:        <property name="jboss.api" value="unsupported"/>
feature-pack/src/main/resources/modules/system/layers/base/org/jgroups/azure/main/module.xml:        <property name="jboss.api" value="unsupported"/>