Delete api: remove broadcast delete if routing is missing when required

docs/reference/migration/migrate_2_0.asciidoc

@@ -161,6 +161,12 @@ shards aren't being kept track of. From version 2.0 the stats in the `_shards` h
 of an index. The http status code is left unchanged and is only based on failures that occurred while executing on
 primary shards.
 
+=== Delete api with missing routing when required
+
+Delete api requires a routing value when deleting a document belonging to a type that has routing set to required in its
+mapping, whereas previous elasticsearch versions would trigger a broadcast delete on all shards belonging to the index.
+A `RoutingMissingException` is now thrown instead.
+
 === Mappings
 
 * The setting `index.mapping.allow_type_wrapper` has been removed.  Documents should always be sent without the type as the root element.

src/main/java/org/elasticsearch/action/ActionModule.java

@@ -129,8 +129,6 @@
 import org.elasticsearch.action.count.TransportCountAction;
 import org.elasticsearch.action.delete.DeleteAction;
 import org.elasticsearch.action.delete.TransportDeleteAction;
-import org.elasticsearch.action.delete.TransportIndexDeleteAction;
-import org.elasticsearch.action.delete.TransportShardDeleteAction;
 import org.elasticsearch.action.deletebyquery.DeleteByQueryAction;
 import org.elasticsearch.action.deletebyquery.TransportDeleteByQueryAction;
 import org.elasticsearch.action.deletebyquery.TransportIndexDeleteByQueryAction;
@@ -282,8 +280,7 @@ protected void configure() {
                 TransportDfsOnlyAction.class);
         registerAction(MultiTermVectorsAction.INSTANCE, TransportMultiTermVectorsAction.class,
                 TransportShardMultiTermsVectorAction.class);
-        registerAction(DeleteAction.INSTANCE, TransportDeleteAction.class,
-                TransportIndexDeleteAction.class, TransportShardDeleteAction.class);
+        registerAction(DeleteAction.INSTANCE, TransportDeleteAction.class);
         registerAction(CountAction.INSTANCE, TransportCountAction.class);
         registerAction(ExistsAction.INSTANCE, TransportExistsAction.class);
         registerAction(SuggestAction.INSTANCE, TransportSuggestAction.class);