Restructure public side of input_events service.

mojo/services/public/interfaces/input_events/BUILD.gn

Index: mojo/services/public/interfaces/input_events/BUILD.gn
diff --git a/mojo/services/public/interfaces/input_events/BUILD.gn b/mojo/services/public/interfaces/input_events/BUILD.gn
deleted file mode 100644
index de7a3a910e959ab55e3e6a6a9be58ad6066a212b..0000000000000000000000000000000000000000
--- a/mojo/services/public/interfaces/input_events/BUILD.gn
+++ /dev/null
@@ -1,17 +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.
-
-import("//mojo/public/tools/bindings/mojom.gni")
-
-mojom("input_events") {
-  sources = [
-    "input_events.mojom",
-    "input_event_constants.mojom",
-    "input_key_codes.mojom",
-  ]
-
-  deps = [
-    "//mojo/services/geometry/public/interfaces",
-  ]
-}