diff --git a/source/net/yacy/search/index/Metadata.java b/source/net/yacy/search/index/Metadata.java
deleted file mode 100644
index 96263296f..000000000
--- a/source/net/yacy/search/index/Metadata.java
+++ /dev/null
@@ -1,68 +0,0 @@
-/**
- *  Metadata
- *  Copyright 2012 by Michael Peter Christen
- *  First released 3.4.2012 at http://yacy.net
- *
- *  This file is part of YaCy Content Integration
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *  
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *  
- *  You should have received a copy of the GNU Lesser General Public License
- *  along with this program in the file lgpl21.txt
- *  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package net.yacy.search.index;
-
-import java.io.IOException;
-
-import net.yacy.cora.order.CloneableIterator;
-import net.yacy.cora.sorting.WeakPriorityBlockingQueue;
-import net.yacy.kelondro.data.meta.URIMetadata;
-import net.yacy.kelondro.data.word.WordReference;
-
-public interface Metadata {
-
-    public void clearCache();
-
-    public void clear() throws IOException;
-
-    public int size();
-
-    public void close();
-
-    public int writeCacheSize();
-
-    public URIMetadata load(final WeakPriorityBlockingQueue.Element<WordReference> obrwi);
-
-    public URIMetadata load(final byte[] urlHash);
-
-    public void store(final URIMetadata entry) throws IOException;
-
-    public boolean remove(final byte[] urlHashBytes);
-
-    public boolean exists(final byte[] urlHash);
-
-    public CloneableIterator<byte[]> keys(final boolean up, final byte[] firstKey);
-
-    public CloneableIterator<URIMetadata> entries() throws IOException;
-
-    public CloneableIterator<URIMetadata> entries(final boolean up, final String firstHash) throws IOException;
-
-    /**
-     * using a fragment of the url hash (5 bytes: bytes 6 to 10) it is possible to address all urls from a specific domain
-     * here such a fragment can be used to delete all these domains at once
-     * @param hosthash
-     * @return number of deleted domains
-     * @throws IOException
-     */
-    public int deleteDomain(final String hosthash) throws IOException;
-}
diff --git a/source/net/yacy/search/index/MetadataRepository.java b/source/net/yacy/search/index/MetadataRepository.java
index b860da22d..1cd2d8c6c 100644
--- a/source/net/yacy/search/index/MetadataRepository.java
+++ b/source/net/yacy/search/index/MetadataRepository.java
@@ -65,7 +65,7 @@ import org.apache.lucene.util.Version;
 import org.apache.solr.common.SolrDocument;
 import org.apache.solr.common.SolrException;
 
-public final class MetadataRepository implements /*Metadata,*/ Iterable<byte[]> {
+public final class MetadataRepository implements Iterable<byte[]> {
 
     // class objects
 	private final File                location;