Remove unused remnants of bootstrap stuff from nacl.gypi

chrome/nacl.gypi

 # Copyright (c) 2011 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.
 
 {
   'include': [
     '../native_client/build/untrusted.gypi',
   ],
   'target_defaults': {
     'variables': {
@@ skipping 109 matching lines @@
                 'defines': [
                   'NACL_BLOCK_SHIFT=5',
                   'NACL_BLOCK_SIZE=32',
                   '<@(nacl_defines)',
                 ],
               },
             },
           ],
         }],
         ['OS=="linux" and coverage==0', {
-          'conditions': [
-            ['target_arch=="x64"', {
-              'variables': {
-                # No extra reservation.
-                'nacl_reserve_top': [],
-              }
-            }],
-            ['target_arch=="ia32"', {
-              'variables': {
-                # 1G address space.
-                'nacl_reserve_top': ['--defsym', 'RESERVE_TOP=0x40000000'],
-              }
-            }],
-            ['target_arch=="arm"', {
-              'variables': {
-                # 1G address space, plus 4K guard area above because
-                # immediate offsets are 12 bits.
-                'nacl_reserve_top': ['--defsym', 'RESERVE_TOP=0x40001000'],
-              }
-            }],
-          ],
           'targets': [
             {
               'target_name': 'nacl_helper',
               'type': 'executable',
               'include_dirs': [
                 '..',
               ],
               'dependencies': [
                 'nacl',
               ],
@@ skipping 44 matching lines @@
               'target_name': 'nacl_win64',
               'type': 'none',
               'sources': [],
             },
           ],
         }],
       ],
     }],
   ],
 }