[Remove] TypeFieldMapper (#3196)

Removes last trace of TypeFieldMapper since types have been removed and
NestedPathFieldMapper is now available.

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>
(cherry picked from commit 741445a)

server/src/main/java/org/opensearch/common/lucene/search/Queries.java

@@ -33,7 +33,6 @@
 package org.opensearch.common.lucene.search;
 
 import org.apache.lucene.index.LeafReaderContext;
-import org.apache.lucene.index.Term;
 import org.apache.lucene.queries.ExtendedCommonTermsQuery;
 import org.apache.lucene.search.BooleanClause;
 import org.apache.lucene.search.BooleanClause.Occur;
@@ -43,17 +42,14 @@
 import org.apache.lucene.search.IndexSearcher;
 import org.apache.lucene.search.MatchAllDocsQuery;
 import org.apache.lucene.search.MatchNoDocsQuery;
-import org.apache.lucene.search.PrefixQuery;
 import org.apache.lucene.search.Query;
 import org.apache.lucene.search.QueryVisitor;
 import org.apache.lucene.search.ScoreMode;
 import org.apache.lucene.search.Scorer;
 import org.apache.lucene.search.Weight;
-import org.apache.lucene.util.BytesRef;
 import org.opensearch.OpenSearchException;
 import org.opensearch.common.Nullable;
 import org.opensearch.index.mapper.SeqNoFieldMapper;
-import org.opensearch.index.mapper.TypeFieldMapper;
 
 import java.io.IOException;
 import java.util.Collection;
@@ -87,7 +83,7 @@ public static Query newLenientFieldQuery(String field, RuntimeException e) {
     }
 
     public static Query newNestedFilter() {
-        return new PrefixQuery(new Term(TypeFieldMapper.NAME, new BytesRef("__")));
+        return not(newNonNestedFilter());
     }
 
     /**