Remove some old support for PNaCl Scons browser tests.

ppapi/native_client/tests/breakpad_crash_test/nacl.scons

 # -*- python -*-
 # Copyright (c) 2012 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 os
 
 Import('env')
 
 if env.Bit('host_windows') or env.Bit('host_mac'):
@@ skipping 33 matching lines @@
 # See: https://code.google.com/p/chromium/issues/detail?id=129402
 env.AddNodeToTestSuite(
     node, ['chrome_browser_tests'], 'run_breakpad_browser_process_crash_test',
     is_broken=(env.PPAPIBrowserTesterIsBroken() or
                env.Bit('host_linux') or env.Bit('host_mac') or
                env.Bit('running_on_valgrind')))
 
 # This crash in trusted code should produce a crash dump.
 # DISABLED due to flakiness (http://crbug.com/247114).
 # crash_test_url = 'trusted_crash_in_startup.html'
-# if env.Bit('pnacl_generate_pexe'):
-#   crash_test_url += '?is_pnacl=true'
 # node = env.PPAPIBrowserTester(
 #     'breakpad_trusted_crash_in_startup_test.out',
 #     python_tester_script=env.File('crash_dump_tester.py'),
 #     url=crash_test_url,
 #     nmf_names=['crash_test'],
 #     files=[GetNexeByName('crash_test'),
 #            env.File('trusted_crash_in_startup.html')],
 #     osenv='NACL_CRASH_TEST=1',
 #     args=platform_args + ['--expected_crash_dumps=%i' % expected_crash_dumps])
 # 
@@ skipping 29 matching lines @@
     python_tester_script=env.File('crash_dump_tester.py'),
     url='untrusted_crash.html',
     nmf_names=['crash_test'],
     files=[GetNexeByName('crash_test'),
            env.File('untrusted_crash.html')],
     args=platform_args + ['--expected_crash_dumps=0'])
 env.AddNodeToTestSuite(
     node, ['chrome_browser_tests'], 'run_breakpad_untrusted_crash_test',
     is_broken=env.PPAPIBrowserTesterIsBroken() or
                env.Bit('running_on_valgrind'))