Delete the Surfaces service.

mojo/converters/surfaces/tests/BUILD.gn

-# 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("//testing/test.gni")
-
-test("mojo_surfaces_lib_unittests") {
-  deps = [
-    "//base",
-    "//base/test:test_support",
-    "//cc",
-    "//cc/surfaces",
-    "//gpu",
-    "//mojo/converters/geometry",
-    "//mojo/converters/surfaces",
-    "//mojo/edk/test:run_all_unittests",
-    "//mojo/environment:chromium",
-    "//mojo/services/geometry/interfaces",
-    "//mojo/services/surfaces/interfaces",
-    "//skia",
-    "//testing/gtest",
-    "//ui/gfx",
-    "//ui/gfx/geometry",
-    "//ui/gfx:test_support",
-  ]
-
-  sources = [
-    "surface_unittest.cc",
-  ]
-}