Remove things from breakpad_tools.gypi that are set by build/common.gypi or implicitly.

breakpad/breakpad_tools.gypi

 # 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.
 
 {
   'conditions': [
-    ['OS=="linux" or OS=="android"', {
-      'variables': {
-        'host_arch': '<!pymod_do_main(detect_host_arch)',
-      },
-      'conditions': [
-        ['host_arch=="x86_64"', {
-          'cflags!': ['-m32', '-march=pentium4', '-msse2', '-mfpmath=sse'],
-          'ldflags!': ['-m32'],
-          'cflags': ['-O2'],
-          'include_dirs!': ['/usr/include32'],
-          'conditions': [
-            ['target_arch=="ia32" and sysroot!=""', {
-              'cflags!': ['--sysroot=<(sysroot)'],
-            }],
-          ],
-        }],
-      ],
-    }],
     ['OS=="android"', {
       'toolsets': ['host'],
-      'defines': ['__ANDROID__'],
     }],
     ['clang==1', {
       'cflags': ['-Wno-tautological-constant-out-of-range-compare'],
       'xcode_settings': {
         'WARNING_CFLAGS': ['-Wno-tautological-constant-out-of-range-compare'],
       },
     }],
   ],
   'include_dirs': [
     'src',
     'src/third_party',
   ],
 }