Remove mojo/apps/js, it is unused

mojo/apps/js/BUILD.gn

Index: mojo/apps/js/BUILD.gn
diff --git a/mojo/apps/js/BUILD.gn b/mojo/apps/js/BUILD.gn
deleted file mode 100644
index bc63231a3b706f0e026475d8081cae55d8ba758d..0000000000000000000000000000000000000000
--- a/mojo/apps/js/BUILD.gn
+++ /dev/null
@@ -1,82 +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.
-
-group("js") {
-  # Meta-target, don't link into production code.
-  testonly = true
-  deps = [
-    ":mojo_js_content_handler",
-    ":mojo_js_standalone"
-  ]
-}
-
-# GYP version: part of mojo/mojo_apps.gypi:mojo_js_lib
-source_set("mojo_runner") {
-  sources = [
-    "mojo_runner_delegate.cc",
-    "mojo_runner_delegate.h",
-  ]
-
-  public_deps = [
-    "//mojo/bindings/js",
-  ]
-  deps = [
-    "//base",
-    "//gin",
-    "//mojo/apps/js/bindings",
-    "//mojo/apps/js/bindings/gl",
-    "//v8",
-  ]
-}
-
-# GYP version: mojo/mojo_apps.gypi:mojo_js_apps_lib
-source_set("js_apps") {
-  sources = [
-    "application_delegate_impl.cc",
-    "js_app.cc",
-    "mojo_bridge_module.cc",
-  ]
-
-  public_deps = [
-    "//mojo/bindings/js",
-  ]
-  deps = [
-    ":mojo_runner",
-    "//mojo/application",
-    "//mojo/public/c/system:for_shared_library",
-    "//mojo/public/cpp/utility",
-  ]
-}
-
-shared_library("mojo_js_content_handler") {
-  sources = [
-    "content_handler_impl.cc",
-    "content_handler_main.cc",
-  ]
-
-  deps = [
-    ":js_apps",
-    "//base:i18n",
-    "//mojo/application:application",
-    "//mojo/environment:chromium",
-    "//mojo/services/public/interfaces/content_handler",
-  ]
-}
-
-shared_library("mojo_js_standalone") {
-  sources = [
-    "standalone_main.cc"
-  ]
-
-  deps = [
-    ":js_apps",
-    "//base:i18n",
-    "//mojo/application:application",
-    "//mojo/environment:chromium",
-    "//mojo/public/cpp/application",
-  ]
-}
-
-
-