Revert of Upgrade to new Android SDK.

build/android/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/android/rules.gni")
 
 if (enable_java_templates) {
   import("//third_party/ijar/ijar.gni")
 
   sun_tools_jar_path = "$root_gen_dir/sun_tools_jar/tools.jar"
@@ skipping 95 matching lines @@
   _py_files = read_file("test_runner.pydeps", "list lines")
 
   # Filter out comments.
   set_sources_assignment_filter([ "#*" ])
   sources = _py_files
 
   data = sources + [
            "devil_chromium.json",
            "pylib/gtest/filter/",
            "test_wrapper/logdog_wrapper.py",
-           "//third_party/android_tools/sdk/build-tools/24.0.2/aapt",
-           "//third_party/android_tools/sdk/build-tools/24.0.2/dexdump",
-           "//third_party/android_tools/sdk/build-tools/24.0.2/lib64/libc++.so",
-           "//third_party/android_tools/sdk/build-tools/24.0.2/split-select",
+           "//third_party/android_tools/sdk/build-tools/23.0.1/aapt",
+           "//third_party/android_tools/sdk/build-tools/23.0.1/dexdump",
+           "//third_party/android_tools/sdk/build-tools/23.0.1/lib/libc++.so",
+           "//third_party/android_tools/sdk/build-tools/23.0.1/split-select",
            "//third_party/android_tools/sdk/platform-tools/adb",
            "//third_party/catapult/third_party/gsutil/",
            "//third_party/catapult/devil/devil/devil_dependencies.json",
            "//third_party/proguard/lib/proguard.jar",
          ]
   data_deps = [
     "//tools/swarming_client:isolate_py",
   ]
 }
 
@@ skipping 17 matching lines @@
   _target_name = get_path_info(script, "name") + "_wrapper"
   _wrapper_targets += [ ":$_target_name" ]
   wrapper_script(_target_name) {
     target = script
   }
 }
 
 group("wrapper_scripts") {
   deps = _wrapper_targets
 }