sandbox: remove seccomp-bpf demo program

sandbox/linux/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("//build/config/features.gni")
 
 declare_args() {
   compile_suid_client = is_linux
 
   compile_credentials = is_linux
@@ skipping 168 matching lines @@
     "seccomp-bpf-helpers/syscall_sets.h",
   ]
   defines = [ "SANDBOX_IMPLEMENTATION" ]
 
   deps = [
     "//base",
     ":seccomp_bpf",
   ]
 }
 
-if (compile_seccomp_bpf_demo) {
-  # A demonstration program for the seccomp-bpf sandbox.
-  executable("seccomp_bpf_demo") {
-    sources = [
-      "seccomp-bpf/demo.cc",
-    ]
-    deps = [
-      ":seccomp_bpf",
-    ]
-  }
-}
-
 # The setuid sandbox for Linux.
 executable("chrome_sandbox") {
   sources = [
     "suid/common/sandbox.h",
     "suid/common/suid_unsafe_environment_variables.h",
     "suid/linux_util.c",
     "suid/linux_util.h",
     "suid/process_util.h",
     "suid/process_util_linux.c",
     "suid/sandbox.c",
@@ skipping 105 matching lines @@
   #      'type': 'none',
   #      'variables': {
   #        'test_suite_name': 'sandbox_linux_jni_unittests',
   #      },
   #      'dependencies': [
   #        'sandbox_linux_jni_unittests',
   #      ],
   #      'includes': [ '../../build/apk_test.gypi' ],
   #      }
 }