Remove unused class MinimalMap (#25590)

core/src/main/java/org/elasticsearch/common/util/MinimalMap.java

@@ -1,82 +0,0 @@
-/*
- * Licensed to Elasticsearch under one or more contributor
- * license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright
- * ownership. Elasticsearch licenses this file to you under
- * the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-package org.elasticsearch.common.util;
-
-import java.util.Collection;
-import java.util.Map;
-import java.util.Set;
-
-public abstract class MinimalMap<K, V> implements Map<K, V> {
-
-    @Override
-    public boolean isEmpty() {
-        throw new UnsupportedOperationException("entrySet() not supported!");
-    }
-
-    @Override
-    public V put(K key, V value) {
-        throw new UnsupportedOperationException("put(Object, Object) not supported!");
-    }
-
-    @Override
-    public void putAll(Map<? extends K, ? extends V> m) {
-        throw new UnsupportedOperationException("putAll(Map<? extends K, ? extends V>) not supported!");
-    }
-
-    @Override
-    public V remove(Object key) {
-        throw new UnsupportedOperationException("remove(Object) not supported!");
-    }
-
-    @Override
-    public void clear() {
-        throw new UnsupportedOperationException("clear() not supported!");
-    }
-
-    @Override
-    public Set<K> keySet() {
-        throw new UnsupportedOperationException("keySet() not supported!");
-    }
-
-    @Override
-    public Collection<V> values() {
-        throw new UnsupportedOperationException("values() not supported!");
-    }
-
-    @Override
-    public Set<Entry<K, V>> entrySet() {
-        throw new UnsupportedOperationException("entrySet() not supported!");
-    }
-
-    @Override
-    public boolean containsValue(Object value) {
-        throw new UnsupportedOperationException("containsValue(Object) not supported!");
-    }
-
-    @Override
-    public int size() {
-        throw new UnsupportedOperationException("size() not supported!");
-    }
-
-    @Override
-    public boolean containsKey(Object k) {
-        throw new UnsupportedOperationException("containsKey(Object) not supported!");
-    }
-}