Simplify the thunk targets since we don't support apps as components

benchmarks/startup/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")
 
 group("startup") {
   testonly = true
 
   deps = [
     ":app",
     ":noop",
   ]
 }
 
 mojo_native_application("app") {
   output_name = "mojo_benchmark_startup"
   testonly = true
 
   sources = [ "startup.cc" ]
-
-  deps = [
-    "//mojo/public/c/system:for_shared_library",
-  ]
 }
 
 executable("noop") {
   output_name = "mojo_benchmark_startup_noop"
   testonly = true
 
   sources = [ "noop.cc" ]
 
   deps = [ "//build/config/sanitizers:deps" ]
 }