Revert "Build notice files from license metadata."

This reverts commit 43c2dcaef6.

Reason for revert: suspect build break

Bug: 227682036

Test: TARGET_BUILD_VARIANT=userdebug UNBUNDLED_BUILD_SDKS_FROM_SOURCE=true vendor/google/build/mainline_modules_bundles.sh -j97


Change-Id: Ibfb8b4fefc264f52f32ba661c269a9cd625d800a

scripts/mergenotice.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2019 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.
+#
+"""
+Merges input notice files to the output file while ignoring duplicated files
+This script shouldn't be confused with build/soong/scripts/generate-notice-files.py
+which is responsible for creating the final notice file for all artifacts
+installed. This script has rather limited scope; it is meant to create a merged
+notice file for a set of modules that are packaged together, e.g. in an APEX.
+The merged notice file does not reveal the individual files in the package.
+"""
+
+import sys
+import argparse
+
+def get_args():
+  parser = argparse.ArgumentParser(description='Merge notice files.')
+  parser.add_argument('--output', help='output file path.')
+  parser.add_argument('inputs', metavar='INPUT', nargs='+',
+                      help='input notice file')
+  return parser.parse_args()
+
+def main(argv):
+  args = get_args()
+
+  processed = set()
+  with open(args.output, 'w+') as output:
+    for input in args.inputs:
+      with open(input, 'r') as f:
+        data = f.read().strip()
+        if data not in processed:
+          processed.add(data)
+          output.write('%s\n\n' % data)
+
+if __name__ == '__main__':
+  main(sys.argv)