Experimental i18n extension breaks shared library build. Revert recent

src/extensions/experimental/i18n-utils.h

Index: src/extensions/experimental/i18n-utils.h
diff --git a/src/extensions/experimental/i18n-utils.h b/src/extensions/experimental/i18n-utils.h
index b5e215ec99c01a8443ad16616d4a2cf917b6796f..770270866a98681af4d29866d3ea1a2dd158cfb1 100644
--- a/src/extensions/experimental/i18n-utils.h
+++ b/src/extensions/experimental/i18n-utils.h
@@ -28,14 +28,6 @@
 #ifndef V8_EXTENSIONS_EXPERIMENTAL_I18N_UTILS_H_
 #define V8_EXTENSIONS_EXPERIMENTAL_I18N_UTILS_H_
 
-#include <v8.h>
-
-#include "unicode/uversion.h"
-
-namespace U_ICU_NAMESPACE {
-class UnicodeString;
-}
-
 namespace v8 {
 namespace internal {
 
@@ -48,12 +40,6 @@ class I18NUtils {
   // TODO(cira): Find a way to use OS::SNPrintF instead.
   static void StrNCopy(char* dest, int length, const char* src);
 
-  // Extract a string setting named in |settings| and set it to |result|.
-  // Return true if it's specified. Otherwise, return false.
-  static bool ExtractStringSetting(const v8::Handle<v8::Object>& settings,
-                                   const char* setting,
-                                   icu::UnicodeString* result);
-
  private:
   I18NUtils() {}
 };