Delete dead Device Motion code in Blink.

Source/modules/device_orientation/DeviceMotionClient.h

Index: Source/modules/device_orientation/DeviceMotionClient.h
diff --git a/Source/modules/device_orientation/DeviceMotionClient.h b/Source/modules/device_orientation/DeviceMotionClient.h
deleted file mode 100644
index c586043fbcf1ab8866193cf6aec9c20af61a6ae4..0000000000000000000000000000000000000000
--- a/Source/modules/device_orientation/DeviceMotionClient.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright 2010 Apple Inc. All rights reserved.
- * Copyright (C) 2012 Samsung Electronics. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef DeviceMotionClient_h
-#define DeviceMotionClient_h
-
-#include "core/page/DeviceClient.h"
-
-namespace WebCore {
-
-class DeviceMotionController;
-class DeviceMotionData;
-class Page;
-
-class DeviceMotionClient : public DeviceClient {
-public:
-    virtual ~DeviceMotionClient() {}
-    virtual void setController(DeviceMotionController*) = 0;
-    virtual DeviceMotionData* lastMotion() const = 0;
-    virtual void deviceMotionControllerDestroyed() = 0;
-};
-
-void provideDeviceMotionTo(Page*, DeviceMotionClient*);
-
-} // namespace WebCore
-
-#endif // DeviceMotionClient_h