Remove solicit map request message class and interface

This control message is a special type of map request message,
therefore, it can be merged with LispMapRequest class.

Change-Id: I9549a18277411947cf4d485f62f92d8259575c94

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * Licensed 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.onosproject.lisp.msg.protocols;
-
-import io.netty.buffer.ByteBuf;
-
-/**
- * Default LISP solicit map request message class.
- */
-public class DefaultLispSolicitMapRequest implements LispSolicitMapRequest {
-    @Override
-    public LispType getType() {
-        return null;
-    }
-
-    @Override
-    public void writeTo(ByteBuf byteBuf) {
-
-    }
-
-    @Override
-    public Builder createBuilder() {
-        return null;
-    }
-}

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * Licensed 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.onosproject.lisp.msg.protocols;
-
-/**
- * LISP solicit map request message interface.
- */
-public interface LispSolicitMapRequest extends LispMessage {
-}

@@ -25,7 +25,5 @@ public enum LispType {
     LISP_MAP_REGISTER,          // LISP Map-Register Message
     LISP_MAP_NOTIFY,            // LISP Map-Notify Message
     LISP_MAP_REQUEST,           // LISP Map-Request Message
-    LISP_MAP_REPLY,             // LISP Map-Reply Message
-    LISP_MAP_REPLY_ACTION,      // LISP Map-Reply-Action Message
-    LISP_SOLICIT_MAP_REQUEST;   // LISP Solicit-Map-Request Message
+    LISP_MAP_REPLY              // LISP Map-Reply Message
 }