Revert "Create an app snapshot of the Dart front end."

utils/kernel-service/BUILD.gn

Index: utils/kernel-service/BUILD.gn
diff --git a/utils/kernel-service/BUILD.gn b/utils/kernel-service/BUILD.gn
deleted file mode 100644
index 93f66f1972364dc80c3c6f30ed89bb42d1f3330c..0000000000000000000000000000000000000000
--- a/utils/kernel-service/BUILD.gn
+++ /dev/null
@@ -1,16 +0,0 @@
-# Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-import("../application_snapshot.gni")
-
-application_snapshot("kernel-service") {
-  dfe_script = "kernel-service.dart"
-  deps = [
-    "../../runtime/vm:patched_sdk($host_toolchain)",
-  ]
-  main_dart = dfe_script
-  training_args = [
-      "file://" + rebase_path("../../pkg/compiler/lib/src/dart2js.dart"),
-  ]
-}