Remove unused classes

/*

 * Copyright (C) 2008 The Android Open Source Project

 *

 * 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 android.annotation;

import java.lang.annotation.ElementType;

import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.lang.annotation.Target;

/**

 * Indicates a constant field value should be exported to be used in the SDK tools.

 *

 * @hide

 */

@Target({ElementType.FIELD})

@Retention(RetentionPolicy.SOURCE)

public @interface SdkConstant {

    public static enum SdkConstantType {

        ACTIVITY_INTENT_ACTION, BROADCAST_INTENT_ACTION, SERVICE_ACTION, INTENT_CATEGORY, FEATURE;

    }

    SdkConstantType value();

}