Remove unused UnsupportedAppUsage annotations.

The new annotation is android.compat.annotation.UnsupportedAppUsage.

Test: m
Bug: 145132366
Exempt-From-Owner-Approval: previously approved change
Change-Id: Ie12e28eee0ed20b5677ee3162143700813b7ab64
diff --git a/Android.bp b/Android.bp
index df276a0..ffb4d3a 100644
--- a/Android.bp
+++ b/Android.bp
@@ -583,7 +583,6 @@
     host_supported: true,
     srcs: [
         "core/java/android/annotation/IntDef.java",
-        "core/java/android/annotation/UnsupportedAppUsage.java",
     ],
     static_libs: [
         "art.module.api.annotations",
@@ -664,7 +663,6 @@
         "core/java/android/annotation/SystemApi.java",
         "core/java/android/annotation/SystemService.java",
         "core/java/android/annotation/TestApi.java",
-        "core/java/android/annotation/UnsupportedAppUsage.java",
         "core/java/com/android/internal/annotations/GuardedBy.java",
         "core/java/com/android/internal/annotations/VisibleForTesting.java",
         "core/java/com/android/internal/annotations/Immutable.java",
@@ -1073,7 +1071,6 @@
         "core/java/android/annotation/Nullable.java",
         "core/java/android/annotation/SystemApi.java",
         "core/java/android/annotation/TestApi.java",
-        "core/java/android/annotation/UnsupportedAppUsage.java",
         "core/java/android/os/HidlMemory.java",
         "core/java/android/os/HwBinder.java",
         "core/java/android/os/HwBlob.java",
diff --git a/core/java/android/annotation/UnsupportedAppUsage.java b/core/java/android/annotation/UnsupportedAppUsage.java
deleted file mode 100644
index 1af48cb..0000000
--- a/core/java/android/annotation/UnsupportedAppUsage.java
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * Copyright (C) 2018 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 static java.lang.annotation.ElementType.CONSTRUCTOR;
-import static java.lang.annotation.ElementType.FIELD;
-import static java.lang.annotation.ElementType.METHOD;
-import static java.lang.annotation.ElementType.TYPE;
-import static java.lang.annotation.RetentionPolicy.CLASS;
-
-import java.lang.annotation.Repeatable;
-import java.lang.annotation.Retention;
-import java.lang.annotation.Target;
-
-/**
- * Indicates that this non-SDK interface is used by apps. A non-SDK interface is a
- * class member (field or method) that is not part of the public SDK. Since the
- * member is not part of the SDK, usage by apps is not supported.
- *
- * <h2>If you are an Android App developer</h2>
- *
- * This annotation indicates that you may be able to access the member, but that
- * this access is discouraged and not supported by Android. If there is a value
- * for {@link #maxTargetSdk()} on the annotation, access will be restricted based
- * on the {@code targetSdkVersion} value set in your manifest.
- *
- * <p>Fields and methods annotated with this are likely to be restricted, changed
- * or removed in future Android releases. If you rely on these members for
- * functionality that is not otherwise supported by Android, consider filing a
- * <a href="http://g.co/dev/appcompat">feature request</a>.
- *
- * <h2>If you are an Android OS developer</h2>
- *
- * This annotation acts as a heads up that changing a given method or field
- * may affect apps, potentially breaking them when the next Android version is
- * released. In some cases, for members that are heavily used, this annotation
- * may imply restrictions on changes to the member.
- *
- * <p>This annotation also results in access to the member being permitted by the
- * runtime, with a warning being generated in debug builds. Which apps can access
- * the member is determined by the value of {@link #maxTargetSdk()}.
- *
- * <p>For more details, see go/UnsupportedAppUsage.
- *
- * {@hide}
- */
-@Retention(CLASS)
-@Target({CONSTRUCTOR, METHOD, FIELD, TYPE})
-@Repeatable(UnsupportedAppUsage.Container.class)
-public @interface UnsupportedAppUsage {
-
-    /**
-     * Associates a bug tracking the work to add a public alternative to this API. Optional.
-     *
-     * @return ID of the associated tracking bug
-     */
-    long trackingBug() default 0;
-
-    /**
-     * Indicates that usage of this API is limited to apps based on their target SDK version.
-     *
-     * <p>Access to the API is allowed if the targetSdkVersion in the apps manifest is no greater
-     * than this value. Access checks are performed at runtime.
-     *
-     * <p>This is used to give app developers a grace period to migrate off a non-SDK interface.
-     * When making Android version N, existing APIs can have a maxTargetSdk of N-1 added to them.
-     * Developers must then migrate off the API when their app is updated in future, but it will
-     * continue working in the meantime.
-     *
-     * <p>Possible values are:
-     * <ul>
-     *     <li>
-     *         An API level like {@link android.os.Build.VERSION_CODES#O} - in which case the API is
-     *         available up to and including the specified release. Or, in other words, the API is
-     *         blacklisted (unavailable) from the next API level from the one specified.
-     *     </li>
-     *     <li>
-     *         absent (default value) - All apps can access this API, but doing so may result in
-     *         warnings in the log, UI warnings (on developer builds) and/or strictmode violations.
-     *         The API is likely to be further restricted in future.
-     *     </li>
-     *
-     * </ul>
-     *
-     * @return The maximum value for an apps targetSdkVersion in order to access this API.
-     */
-    int maxTargetSdk() default Integer.MAX_VALUE;
-
-    /**
-     * For debug use only. The expected dex signature to be generated for this API, used to verify
-     * parts of the build process.
-     *
-     * @return A dex API signature.
-     */
-    String expectedSignature() default "";
-
-    /**
-     * The signature of an implicit (not present in the source) member that forms part of the
-     * hiddenapi.
-     *
-     * <p>Allows access to non-SDK API elements that are not represented in the input source to be
-     * managed.
-     *
-     * <p>This must only be used when applying the annotation to a type, using it in any other
-     * situation is an error.
-     *
-     * @return A dex API signature.
-     */
-    String implicitMember() default "";
-
-    /**
-     * Public API alternatives to this API.
-     *
-     * <p>If non-empty, the string must be a description of the public API alternative(s) to this
-     * API. The explanation must contain at least one Javadoc link tag to public API methods or
-     * fields. e.g.:
-     * {@literal @UnsupportedAppUsage(publicAlternatives="Use {@link foo.bar.Baz#bat()} instead.")}
-     *
-     * <p>Any elements that can be deduced can be omitted, e.g.:
-     * <ul>
-     *      <li>
-     *          the class, if it's the same as for the annotated element.
-     *      </li>
-     *      <li>
-     *          the package name, if it's the same as for the annotated element.
-     *      </li>
-     *      <li>
-     *          the method parameters, if there is only one method with that name in the given
-     *          package and class.
-     *      </li>
-     * </ul>
-     * @return A Javadoc-formatted string.
-     */
-    @SuppressWarnings("JavadocReference")
-    String publicAlternatives() default "";
-
-    /**
-     * Override the default source position when generating an index of the annotations.
-     *
-     * <p>This is intended for use by tools that generate java source code, to point to the
-     * original source position of the annotation, rather than the position within the generated
-     * code. It should never be set manually.
-     *
-     * <p>The format of the value is "path/to/file:startline:startcol:endline:endcol" indicating
-     * the position of the annotation itself.
-     */
-    String overrideSourcePosition() default "";
-
-    /**
-     * Container for {@link UnsupportedAppUsage} that allows it to be applied repeatedly to types.
-     */
-    @Retention(CLASS)
-    @Target(TYPE)
-    @interface Container {
-        UnsupportedAppUsage[] value();
-    }
-}
diff --git a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
index 905a94f..15698e9 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
@@ -3510,7 +3510,7 @@
     }
 
     /**
-     * This is kept due to {@link android.annotation.UnsupportedAppUsage} in
+     * This is kept due to {@code @UnsupportedAppUsage} in
      * {@link InputMethodManager#getInputMethodWindowVisibleHeight()} and a dependency in
      * {@link InputMethodService#onCreate()}.
      *
diff --git a/tools/codegen/src/com/android/codegen/ImportsProvider.kt b/tools/codegen/src/com/android/codegen/ImportsProvider.kt
index ba0a031..c830aaa 100644
--- a/tools/codegen/src/com/android/codegen/ImportsProvider.kt
+++ b/tools/codegen/src/com/android/codegen/ImportsProvider.kt
@@ -46,7 +46,7 @@
     val Parcelling: String get() { return classRef("com.android.internal.util.Parcelling") }
     val Parcelable: String get() { return classRef("android.os.Parcelable") }
     val Parcel: String get() { return classRef("android.os.Parcel") }
-    val UnsupportedAppUsage: String get() { return classRef("android.annotation.UnsupportedAppUsage") }
+    val UnsupportedAppUsage: String get() { return classRef("android.compat.annotation.UnsupportedAppUsage") }
 
     /**
      * Optionally shortens a class reference if there's a corresponding import present