Remove package-info because IntentInstaller no longer exists

Change-Id: Ic45e6e9c7dd53f37f2f2265a22a23a5eb9a06dbd

-/*
- * Copyright 2015 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.
- */
-
-/**
- * Implementations of builtin intent installers.
- */
-package org.onosproject.net.intent.impl.installer;
\ No newline at end of file