Revert "Convert Android.mk to Android.bp"

This reverts commit 9a7e79112d.

Reason for revert: Broke builds

Change-Id: I45b2e49535a12272963a24f1e9f7ef25b31e5360
Merged-In: I80688006411dcf32f8f329556044d25ad12af1ac

packages/PackageInstaller/Android.bp

@@ -1,28 +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.
-
-android_app {
-    name: "PackageInstaller",
-
-    srcs: ["src/**/*.java"],
-
-    certificate: "platform",
-    privileged: true,
-    platform_apis: true,
-
-    static_libs: [
-        "xz-java",
-        "androidx.leanback_leanback",
-    ],
-}