Revert of [Android] Add an out-of-app instrumentation driver APK.

testing/android/driver/BUILD.gn

Index: testing/android/driver/BUILD.gn
diff --git a/testing/android/driver/BUILD.gn b/testing/android/driver/BUILD.gn
deleted file mode 100644
index 436ac63c245b5fabc4b6079e13a52d7446aec110..0000000000000000000000000000000000000000
--- a/testing/android/driver/BUILD.gn
+++ /dev/null
@@ -1,21 +0,0 @@
-# Copyright 2015 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")
-
-# GYP: //testing/android/on_device_instrumentation.gyp:driver_apk
-android_apk("driver_apk") {
-  android_manifest = "java/AndroidManifest.xml"
-  apk_name = "OnDeviceInstrumentationDriver"
-  testonly = true
-
-  deps = [
-    "//testing/android/appurify_support:appurify_support_java",
-    "//testing/android/broker:broker_java",
-    "//testing/android/reporter:reporter_java",
-  ]
-
-  java_files =
-      [ "java/src/org/chromium/test/driver/OnDeviceInstrumentationDriver.java" ]
-}