Remove mojo/shell and (most) service implementations

mojo/services/surfaces/BUILD.gn

Index: mojo/services/surfaces/BUILD.gn
diff --git a/mojo/services/surfaces/BUILD.gn b/mojo/services/surfaces/BUILD.gn
deleted file mode 100644
index 40103eaca40be8f99f8755970ef076014857c257..0000000000000000000000000000000000000000
--- a/mojo/services/surfaces/BUILD.gn
+++ /dev/null
@@ -1,34 +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.
-
-# GYP version: mojo/mojo_services.gypi:mojo_surfaces_service
-shared_library("surfaces") {
-  output_name = "mojo_surfaces_service"
-
-  deps = [
-    "//base",
-    "//cc",
-    "//cc/surfaces",
-    "//ui/gfx/geometry",
-    "//mojo/application",
-    "//mojo/cc",
-    "//mojo/converters/geometry",
-    "//mojo/converters/surfaces",
-    "//mojo/environment:chromium",
-    "//mojo/public/c/system:for_shared_library",
-    "//mojo/public/gles2:for_shared_library",
-    "//mojo/services/public/interfaces/geometry",
-    "//mojo/services/public/interfaces/gpu",
-    "//mojo/services/public/interfaces/surfaces",
-  ]
-
-  sources = [
-    "surfaces_impl.cc",
-    "surfaces_impl.h",
-    "surfaces_service_application.cc",
-    "surfaces_service_application.h",
-    "surfaces_service_impl.cc",
-    "surfaces_service_impl.h",
-  ]
-}