Remove lots of dead web/ classes.

sky/engine/public/platform/WebPlatformEventType.h

Index: sky/engine/public/platform/WebPlatformEventType.h
diff --git a/sky/engine/public/platform/WebPlatformEventType.h b/sky/engine/public/platform/WebPlatformEventType.h
deleted file mode 100644
index a8fe1e34adc81100fcb1a522e104565db8cc61a5..0000000000000000000000000000000000000000
--- a/sky/engine/public/platform/WebPlatformEventType.h
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2014 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.
-
-#ifndef WebPlatformEventType_h
-#define WebPlatformEventType_h
-
-namespace blink {
-
-enum WebPlatformEventType {
-    WebPlatformEventDeviceMotion,
-    WebPlatformEventDeviceOrientation,
-    WebPlatformEventDeviceLight,
-    WebPlatformEventBattery,
-    WebPlatformEventScreenOrientation,
-};
-
-} // namespace blink
-
-#endif // WebPlatformEventType_h