Remove DeviceLightEvent implementation

device/sensors/data_fetcher_shared_memory_android.cc

Index: device/sensors/data_fetcher_shared_memory_android.cc
diff --git a/device/sensors/data_fetcher_shared_memory_android.cc b/device/sensors/data_fetcher_shared_memory_android.cc
index 5dec86a1ab0b18b725a9024a990e99c64d2e434c..3e08690600cf07543b4c85af2faa62699a0a11a1 100644
--- a/device/sensors/data_fetcher_shared_memory_android.cc
+++ b/device/sensors/data_fetcher_shared_memory_android.cc
@@ -5,7 +5,6 @@
 #include "device/sensors/data_fetcher_shared_memory.h"
 
 #include "base/logging.h"
-#include "device/sensors/public/cpp/device_light_hardware_buffer.h"
 #include "device/sensors/public/cpp/device_motion_hardware_buffer.h"
 #include "device/sensors/public/cpp/device_orientation_hardware_buffer.h"
 #include "device/sensors/sensor_manager_android.h"
@@ -33,10 +32,6 @@ bool DataFetcherSharedMemory::Start(ConsumerType consumer_type, void* buffer) {
           ->StartFetchingDeviceOrientationAbsoluteData(
               static_cast<DeviceOrientationHardwareBuffer*>(buffer));
       return true;
-    case CONSUMER_TYPE_LIGHT:
-      SensorManagerAndroid::GetInstance()->StartFetchingDeviceLightData(
-          static_cast<DeviceLightHardwareBuffer*>(buffer));
-      return true;
     default:
       NOTREACHED();
   }
@@ -55,9 +50,6 @@ bool DataFetcherSharedMemory::Stop(ConsumerType consumer_type) {
       SensorManagerAndroid::GetInstance()
           ->StopFetchingDeviceOrientationAbsoluteData();
       return true;
-    case CONSUMER_TYPE_LIGHT:
-      SensorManagerAndroid::GetInstance()->StopFetchingDeviceLightData();
-      return true;
     default:
       NOTREACHED();
   }