Remove unused support for SysV shared memory

src/trusted/platform_qualify/platform_qualify.gyp

 # 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.
 
 {
   'variables': {
   },
   'includes': [
     '../../../build/common.gypi',
   ],
   'target_defaults': {
     'variables':{
       'target_base': 'none',
     },
     'target_conditions': [
       ['target_base=="pqlib"', {
         'sources': [
           'kernel_version.h',
           'nacl_dep_qualify.h',
           'nacl_os_qualify.h',
         ],
         'conditions': [
           ['OS=="linux"', {
             'sources': [
               'linux/nacl_os_qualify.c',
-              'linux/sysv_shm_and_mmap.c',
               'posix/nacl_dep_qualify.c',
             ],
           }],
           ['OS=="mac"', {
             'sources': [
               'osx/nacl_os_qualify.c',
               'posix/nacl_dep_qualify.c',
             ],
           }],
           ['OS=="win"', {
@@ skipping 80 matching lines @@
 #if env.Bit('mac'):
 #  vcpuid_env.Append(CCFLAGS = ['-mdynamic-no-pic'])
 #if env.Bit('linux'):
 #  vcpuid_env.Append(CCFLAGS = ['-msse3'])
 #nacl_vcpuid = vcpuid_env.ComponentLibrary('vcpuid', 'vcpuid.c')
 #env.Append(LIBS = ['vcpuid', 'platform_qual_lib', 'ncvalidate'])
 #
 #env.ComponentProgram('platform_qual_test', 'platform_qual_test.c')
 #env.ComponentProgram('nacl_cpuwhitelist_test', 'nacl_cpuwhitelist_test.c')
 #