Fixed a broken import in MultiValueMode.

src/main/java/org/elasticsearch/search/MultiValueMode.java

@@ -20,7 +20,6 @@
 
 package org.elasticsearch.search;
 
-import javafx.collections.transformation.SortedList;
 import org.apache.lucene.index.*;
 import org.apache.lucene.search.DocIdSet;
 import org.apache.lucene.search.DocIdSetIterator;