Revert last commit

tools/gyp/configurations_android.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # Definitions for building standalone Dart binaries to run on Android.
 # This is mostly excerpted from:
 # http://src.chromium.org/viewvc/chrome/trunk/src/build/common.gypi
 
 {
   'variables': {
@@ skipping 15 matching lines @@
     'android_ndk_include': '<(android_ndk_sysroot)/usr/include',
     'android_ndk_lib': '<(android_ndk_sysroot)/usr/lib',
     # Enable to use the system stlport, otherwise statically
     # link the NDK one?
     'use_system_stlport%': '<(android_build_type)',
     'android_stlport_library': 'stlport_static',
     # Copy it out one scope.
     'android_build_type%': '<(android_build_type)',
 
     'OS': 'android',
-    'android_target_arch%' : 'arm',
-    'armv7': 1,
+    'android_target_arch' : 'x86',
   },  # variables
   'target_defaults': {
     'defines': [
       'ANDROID',
     ],
     'configurations': {
       'Dart_Debug': {
         'defines': [
           'DEBUG',
         ],
@@ skipping 156 matching lines @@
         'ldflags!': [
           '-Wl,-z,noexecstack',
           '-Wl,--gc-sections',
           '-Wl,-O1',
           '-Wl,--as-needed',
         ],
       }],
     ],  # target_conditions
   },  # target_defaults
 }