Move //mojo/services/X/public/... to //mojo/services/X/... (part 4).

examples/bank_app/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("//mojo/public/mojo_application.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 
 group("bank_app") {
   deps = [
     ":customer",
     ":bank",
   ]
 }
 
 mojo_native_application("customer") {
   output_name = "customer"
 
   deps = [
     ":bindings",
     "//mojo/public/cpp/application:standalone",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/utility",
-    "//mojo/services/vanadium/security/public/interfaces",
+    "//mojo/services/vanadium/security/interfaces",
   ]
 
   sources = [
     "customer.cc",
   ]
 }
 
 mojo_native_application("bank") {
   output_name = "bank"
 
   deps = [
     ":bindings",
     "//mojo/common",
     "//mojo/public/cpp/application:standalone",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/utility",
-    "//mojo/services/vanadium/security/public/interfaces",
+    "//mojo/services/vanadium/security/interfaces",
   ]
 
   sources = [
     "bank.cc",
   ]
 }
 
 mojom("bindings") {
   sources = [
     "bank.mojom",
   ]
 }