Refactor content/renderer/device_sensors to use device/generic_sensor instead of device/sensors

device/sensors/public/interfaces/motion.mojom

Index: device/sensors/public/interfaces/motion.mojom
diff --git a/device/sensors/public/interfaces/motion.mojom b/device/sensors/public/interfaces/motion.mojom
deleted file mode 100644
index 7755344fdae3a462231db1eac44782591eacabdf..0000000000000000000000000000000000000000
--- a/device/sensors/public/interfaces/motion.mojom
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright 2016 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.
-
-module device.mojom;
-
-interface MotionSensor {
-  StartPolling() => (handle<shared_buffer> memory_handle);
-  StopPolling();
-};