update plugin-descriptor.properties

src/main/resources/plugin-descriptor.properties

@@ -39,20 +39,6 @@ version=${project.version}
 # 'name': the plugin name
 name=${elasticsearch.plugin.name}
 
-### mandatory elements for site plugins:
-#
-# 'site': set to true to indicate contents of the _site/
-#  directory in the root of the plugin should be served.
-site=${elasticsearch.plugin.site}
-#
-### mandatory elements for jvm plugins :
-#
-# 'jvm': true if the 'classname' class should be loaded
-#  from jar files in the root directory of the plugin.
-#  Note that only jar files in the root directory are
-#  added to the classpath for the plugin! If you need
-#  other resources, package them into a resources jar.
-jvm=${elasticsearch.plugin.jvm}
 #
 # 'classname': the name of the class to load, fully-qualified.
 classname=${elasticsearch.plugin.classname}
@@ -69,12 +55,3 @@ java.version=${maven.compiler.target}
 # is loaded so Elasticsearch will refuse to start in the presence of
 # plugins with the incorrect elasticsearch.version.
 elasticsearch.version=${elasticsearch.version}
-#
-### deprecated elements for jvm plugins :
-#
-# 'isolated': true if the plugin should have its own classloader.
-# passing false is deprecated, and only intended to support plugins
-# that have hard dependencies against each other. If this is
-# not specified, then the plugin is isolated by default.
-isolated=${elasticsearch.plugin.isolated}
-#