[Sensors] Remove SensorReading interfaces

third_party/WebKit/Source/modules/sensor/MagnetometerReading.idl

Index: third_party/WebKit/Source/modules/sensor/MagnetometerReading.idl
diff --git a/third_party/WebKit/Source/modules/sensor/MagnetometerReading.idl b/third_party/WebKit/Source/modules/sensor/MagnetometerReading.idl
deleted file mode 100644
index c750fc7930ac4cc1b522f43667ea9f7f6c1d0873..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/modules/sensor/MagnetometerReading.idl
+++ /dev/null
@@ -1,15 +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.
-
-// Specification at:
-// https://w3c.github.io/magnetometer/#magnetometer-reading-interface
-
-[
-    RuntimeEnabled=Sensor,
-    Constructor(MagnetometerReadingInit magnetometerReadingInit)
-] interface MagnetometerReading : SensorReading {
-    readonly attribute unrestricted double x;
-    readonly attribute unrestricted double y;
-    readonly attribute unrestricted double z;
-};