Move conv_classpaths.proto to packages/modules/common.

The classpaths.proto file is needed at build time to generate appropriate
classpath configs for the modules. Unbundled ART branches do not include
packages/modules/SdkExtenstion in their manifest; so put the proto in a
project that should be visible to all unbundled modules.

Bug: 180105615
Test: m nothing
Change-Id: Ie5be1822fbee92f280332622a9317894cc98d7ac

scripts/Android.bp

@@ -265,22 +265,3 @@ python_binary_host {
         "linker_config_proto",
     ],
 }
-
-python_binary_host {
-    name: "conv_classpaths_proto",
-    srcs: [
-        "conv_classpaths_proto.py",
-    ],
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
-    libs: [
-        "classpaths_proto_python",
-    ],
-}

scripts/conv_classpaths_proto.py

@@ -1,76 +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.
-
-import argparse
-
-import classpaths_pb2
-
-import google.protobuf.json_format as json_format
-import google.protobuf.text_format as text_format
-
-
-def encode(args):
-    pb = classpaths_pb2.ExportedClasspathsJars()
-    if args.format == 'json':
-        json_format.Parse(args.input.read(), pb)
-    else:
-        text_format.Parse(args.input.read(), pb)
-    args.output.write(pb.SerializeToString())
-    args.input.close()
-    args.output.close()
-
-
-def decode(args):
-    pb = classpaths_pb2.ExportedClasspathsJars()
-    pb.ParseFromString(args.input.read())
-    if args.format == 'json':
-        args.output.write(json_format.MessageToJson(pb))
-    else:
-        args.output.write(text_format.MessageToString(pb).encode('utf_8'))
-    args.input.close()
-    args.output.close()
-
-
-def main():
-    parser = argparse.ArgumentParser('Convert classpaths.proto messages between binary and '
-                                     'human-readable formats.')
-    parser.add_argument('-f', '--format', default='textproto',
-                        help='human-readable format, either json or text(proto), '
-                             'defaults to textproto')
-    parser.add_argument('-i', '--input',
-                        nargs='?', type=argparse.FileType('rb'), default=sys.stdin.buffer)
-    parser.add_argument('-o', '--output',
-                        nargs='?', type=argparse.FileType('wb'),
-                        default=sys.stdout.buffer)
-
-    subparsers = parser.add_subparsers()
-
-    parser_encode = subparsers.add_parser('encode',
-                                          help='convert classpaths protobuf message from '
-                                               'JSON to binary format',
-                                          parents=[parser], add_help=False)
-
-    parser_encode.set_defaults(func=encode)
-
-    parser_decode = subparsers.add_parser('decode',
-                                          help='print classpaths config in JSON format',
-                                          parents=[parser], add_help=False)
-    parser_decode.set_defaults(func=decode)
-
-    args = parser.parse_args()
-    args.func(args)
-
-
-if __name__ == '__main__':
-    main()