diff --git a/core/src/main/java/org/elasticsearch/index/engine/Engine.java b/core/src/main/java/org/elasticsearch/index/engine/Engine.java
index c66073bd91f..5b6d27ce24f 100644
--- a/core/src/main/java/org/elasticsearch/index/engine/Engine.java
+++ b/core/src/main/java/org/elasticsearch/index/engine/Engine.java
@@ -927,82 +927,6 @@ public abstract class Engine implements Closeable {
         }
     }
 
-    public static class DeleteByQuery {
-        private final Query query;
-        private final BytesReference source;
-        private final String[] filteringAliases;
-        private final Query aliasFilter;
-        private final String[] types;
-        private final BitSetProducer parentFilter;
-        private final Operation.Origin origin;
-
-        private final long startTime;
-        private long endTime;
-
-        public DeleteByQuery(Query query, BytesReference source, @Nullable String[] filteringAliases, @Nullable Query aliasFilter, BitSetProducer parentFilter, Operation.Origin origin, long startTime, String... types) {
-            this.query = query;
-            this.source = source;
-            this.types = types;
-            this.filteringAliases = filteringAliases;
-            this.aliasFilter = aliasFilter;
-            this.parentFilter = parentFilter;
-            this.startTime = startTime;
-            this.origin = origin;
-        }
-
-        public Query query() {
-            return this.query;
-        }
-
-        public BytesReference source() {
-            return this.source;
-        }
-
-        public String[] types() {
-            return this.types;
-        }
-
-        public String[] filteringAliases() {
-            return filteringAliases;
-        }
-
-        public Query aliasFilter() {
-            return aliasFilter;
-        }
-
-        public boolean nested() {
-            return parentFilter != null;
-        }
-
-        public BitSetProducer parentFilter() {
-            return parentFilter;
-        }
-
-        public Operation.Origin origin() {
-            return this.origin;
-        }
-
-        /**
-         * Returns operation start time in nanoseconds.
-         */
-        public long startTime() {
-            return this.startTime;
-        }
-
-        public DeleteByQuery endTime(long endTime) {
-            this.endTime = endTime;
-            return this;
-        }
-
-        /**
-         * Returns operation end time in nanoseconds.
-         */
-        public long endTime() {
-            return this.endTime;
-        }
-    }
-
-
     public static class Get {
         private final boolean realtime;
         private final Term uid;