Fix licenses and license texts.

Use Android-Apache-2.0 for all Apache 2.0

Remove legacy_restricted (no longer appears in code).

Remove Android.bp which did not build anything but was a placeholder
for the missing license texts.

Test: m nothing
Change-Id: Ia491a59c735ca20afda9b4bbac9d8b33dbf8874e

Android.bp

@@ -1,49 +0,0 @@
-//
-// Copyright (C) 2021 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 {
-    default_applicable_licenses: ["build_make_license"],
-}
-
-// Added automatically by a large-scale-change that took the approach of
-// 'apply every license found to every target'. While this makes sure we respect
-// every license restriction, it may not be entirely correct.
-//
-// e.g. GPL in an MIT project might only apply to the contrib/ directory.
-//
-// Please consider splitting the single license below into multiple licenses,
-// taking care not to lose any license_kind information, and overriding the
-// default license using the 'licenses: [...]' property on targets as needed.
-//
-// For unused files, consider creating a 'fileGroup' with "//visibility:private"
-// to attach the license to, and including a comment whether the files may be
-// used in the current project.
-// See: http://go/android-license-faq
-license {
-    name: "build_make_license",
-    visibility: [":__subpackages__"],
-    license_kinds: [
-        "SPDX-license-identifier-Apache-2.0",
-        "SPDX-license-identifier-BSD",
-        "SPDX-license-identifier-CC-BY",
-        "SPDX-license-identifier-GPL",
-        "SPDX-license-identifier-GPL-2.0",
-        "SPDX-license-identifier-LGPL",
-        "SPDX-license-identifier-MIT",
-        "legacy_not_a_contribution",
-        "legacy_restricted",
-    ],
-    // large-scale-change unable to identify any license_text files
-}