Scons: Drop the uses_ppapi argument from CommandSelLdrTestNacl()

tests/nameservice/nacl.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('env')
 
 nameservice_test_nexe = env.ComponentProgram(
                             'nameservice_test',
                             'nameservice_test.c',
@@ skipping 27 matching lines @@
 
 # sel_universal test
 
 node = env.SelUniversalTest(
     'srpc_nameservice_test.out',
     srpc_ns_nexe,
     sel_universal_flags=['--uses_reverse_service',
                          '--command_file',
                          env.File('srpc_nameservice_test.stdin')],
     stdout_golden=env.File('srpc_nameservice_test.stdout'),
-    # Slight misnomer: actually just enables the IRT.
-    uses_ppapi=True
+    uses_irt=True
     )
 env.AddNodeToTestSuite(node,
                        ['small_tests'],
                        'run_srpc_nameservice_test')
 
 # postmessage version of srpc_nameservice_test
 
 pm_ns_obj = env.ComponentObject('pm_nameservice_test.o',
                                 'pm_nameservice_test.cc')
 pm_ns_nexe_name = env.ProgramNameForNmf('pm_nameservice_test')
@@ skipping 20 matching lines @@
     nmf_names=['pm_nameservice_test'],
     files=env.ExtractPublishedFiles(pm_ns_nexe_name),
     args=['--debug'],
     osenv=['NACLVERBOSITY=0:pp_weak_ref=0:weak_ref=0']
     )
 
 env.AddNodeToTestSuite(node,
                        ['chrome_browser_tests'],
                        'run_pm_nameservice_chrome_browser_test',
                        is_broken=env.PPAPIBrowserTesterIsBroken())