Remove navigation_service_unittests, along with the service itself.

mash/BUILD.gn

 # Copyright 2015 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("//build/config/nacl/config.gni")
 import("//services/catalog/public/tools/catalog.gni")
 import("//services/service_manager/public/service_manifest.gni")
 import("//testing/test.gni")
 
 # Target that builders build.
@@ skipping 80 matching lines @@
   testonly = true
   sources = get_target_outputs(":catalog")
   outputs = [
     "$root_out_dir/mash_catalog.json",
   ]
   deps = [
     ":catalog",
   ]
 }
 
-group("browser") {
-  testonly = true
-
-  deps = [
-    ":all",
-    "//mash/browser",
-    "//mash/webtest",
-  ]
-}
-
 if (is_chromeos) {
   # TODO(jamescook): Move these tests into //ash/mus.
   test("mash_unittests") {
     sources = [
       "test/mash_test_suite.cc",
       "test/mash_test_suite.h",
       "test/mash_unittests.cc",
     ]
     deps = [
       "//ash:common_unittests",
@@ skipping 35 matching lines @@
     testonly = true
     sources = get_target_outputs(":mash_unittests_catalog")
     outputs = [
       "${root_out_dir}/mash_unittests_catalog.json",
     ]
     deps = [
       ":mash_unittests_catalog",
     ]
   }
 }