message: build_cleaner the util package.
diff: +load("@build_bazel_rules_android//android:rules.bzl", "android_library")
  load("//tools/build_defs:javac.bzl", "JAVACOPTS_OSS")
  licenses(["notice"])
  package(default_visibility = ["//:__subpackages__"])
  +java_library(
  + name = "keys_downloader",
  + srcs = ["KeysDownloader.java"],
  + deps = [
  + "@maven//:com_google_code_findbugs_jsr305",
  + "@maven//:com_google_http_client_google_http_client",
  + "@maven//:joda_time_joda_time",
  + ],
  +)
  +
  +android_library(
  + name = "keys_downloader-android",
  + srcs = ["KeysDownloader.java"],
  + deps = [
  + "@maven//:com_google_code_findbugs_jsr305",
  + "@maven//:com_google_http_client_google_http_client",
  + "@maven//:joda_time_joda_time",
  + ],
  +)
  +
  +# Deprecated, will be removed.
  +
  filegroup(
  name = "srcs",
  srcs = glob(
  