Revert of [sensors] Ambient light sensor bindings implementation

third_party/WebKit/Source/modules/sensor/AmbientLightSensorReading.cpp

Index: third_party/WebKit/Source/modules/sensor/AmbientLightSensorReading.cpp
diff --git a/third_party/WebKit/Source/modules/sensor/AmbientLightSensorReading.cpp b/third_party/WebKit/Source/modules/sensor/AmbientLightSensorReading.cpp
deleted file mode 100644
index 5c923aff08c2e10cc425f1829f680551c0c8ebd3..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/modules/sensor/AmbientLightSensorReading.cpp
+++ /dev/null
@@ -1,47 +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.
-
-#include "modules/sensor/AmbientLightSensorReading.h"
-
-#include "modules/sensor/SensorProxy.h"
-
-namespace blink {
-
-AmbientLightSensorReading::AmbientLightSensorReading(const AmbientLightSensorReadingInit& init)
-    : SensorReading(nullptr)
-    , mAmbientLightSensorReadingInit(init)
-{
-}
-
-AmbientLightSensorReading::AmbientLightSensorReading(SensorProxy* proxy)
-    : SensorReading(proxy)
-    , mAmbientLightSensorReadingInit(AmbientLightSensorReadingInit())
-{
-}
-
-AmbientLightSensorReading::~AmbientLightSensorReading() = default;
-
-double AmbientLightSensorReading::illuminance() const
-{
-    if (mAmbientLightSensorReadingInit.hasIlluminance())
-        return mAmbientLightSensorReadingInit.illuminance();
-
-    if (!m_sensorProxy)
-        return 0.0;
-    return m_sensorProxy->reading().reading[0];
-}
-
-bool AmbientLightSensorReading::isReadingUpdated(const SensorProxy::Reading& previous) const
-{
-    if (!m_sensorProxy)
-        return false;
-    return previous.reading[0] != illuminance();
-}
-
-DEFINE_TRACE(AmbientLightSensorReading)
-{
-    SensorReading::trace(visitor);
-}
-
-} // namespace blink