Remove unused support for SysV shared memory

SConstruct

 #! -*- 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 atexit
 import json
 import os
 import platform
 import re
@@ skipping 613 matching lines @@
 nacl_glibc_skiplist = set([
     # Struct layouts differ.
     'run_abi_test',
     # Syscall wrappers not implemented yet.
     'run_sysbasic_test',
     'run_sysbrk_test',
     # Fails because clock() is not hooked up.
     'run_timefuncs_test',
     # Needs further investigation.
     'sdk_minimal_test',
-    # run_srpc_sysv_shm_test fails because:
-    # 1) it uses fstat(), while we only have an fstat64() wrapper;
-    # 2) the test needs an explicit fflush(stdout) call because the
-    # process is killed without exit() being called.
-    'run_srpc_sysv_shm_test',
     # This test fails with nacl-glibc: glibc reports an internal
     # sanity check failure in free().
     # TODO(robertm): This needs further investigation.
     'run_ppapi_event_test',
     'run_srpc_ro_file_test',
     'run_ppapi_geturl_valid_test',
     'run_ppapi_geturl_invalid_test',
     # http://code.google.com/p/chromium/issues/detail?id=108131
     # we would need to list all of the glibc components as
     # web accessible resources in the extensions's manifest.json,
@@ skipping 3212 matching lines @@
   nacl_env.ValidateSdk()
 
 if BROKEN_TEST_COUNT > 0:
   msg = "There are %d broken tests." % BROKEN_TEST_COUNT
   if GetOption('brief_comstr'):
     msg += " Add --verbose to the command line for more information."
   print msg
 
 # separate warnings from actual build output
 Banner('B U I L D - O U T P U T:')