NaCl cleanup: Remove ppapi_test_lib from the Scons build

ppapi/native_client/chrome_main.scons

 #! -*- python -*-
 # Copyright (c) 2012 The Native Client 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 json
 import os
 import shutil
 import sys
 
@@ skipping 18 matching lines @@
     combined.add(file_name)
   return sorted(combined)
 
 
 ppapi_scons_files = {}
 ppapi_scons_files['trusted_scons_files'] = []
 ppapi_scons_files['untrusted_irt_scons_files'] = []
 
 ppapi_scons_files['nonvariant_test_scons_files'] = [
     'tests/breakpad_crash_test/nacl.scons',
-    'tests/ppapi_test_lib/nacl.scons',
 ]
 
 ppapi_scons_files['irt_variant_test_scons_files'] = [
     # 'inbrowser_test_runner' must be in the irt_variant list
     # otherwise it will run no tests.
     'tests/nacl_browser/inbrowser_test_runner/nacl.scons',
 ]
 
 ppapi_scons_files['untrusted_scons_files'] = [
     'src/shared/ppapi/nacl.scons',
@@ skipping 467 matching lines @@
 
 pre_base_env.AddMethod(PPAPIGraphics3DIsBroken)
 
 
 def AddChromeFilesFromGroup(env, file_group):
   env['BUILD_SCONSCRIPTS'] = ExtendFileList(
       env.get('BUILD_SCONSCRIPTS', []),
       ppapi_scons_files[file_group])
 
 pre_base_env.AddMethod(AddChromeFilesFromGroup)