Fix win build after r15568

TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/18044003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15570 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

build/standalone.gypi

@@ -33,6 +33,7 @@
     'clang%': 0,
     'visibility%': 'hidden',
     'v8_enable_backtrace%': 0,
+    'v8_enable_i18n_support%': 0,
     'msvs_multi_core_compile%': '1',
     'mac_deployment_target%': '10.5',
     'variables': {