Use FormatMessageW for Windows error messages to handle internationalized messages correctly.

runtime/bin/platform_android.cc

Index: runtime/bin/platform_android.cc
diff --git a/runtime/bin/platform_android.cc b/runtime/bin/platform_android.cc
index 206eca3227e9bd369b4145ae07992354d51de4a7..a05de342d8f87ba8c09cb5b31fcc44c1616aaf44 100644
--- a/runtime/bin/platform_android.cc
+++ b/runtime/bin/platform_android.cc
@@ -65,12 +65,3 @@ char** Platform::Environment(intptr_t* count) {
 void Platform::FreeEnvironment(char** env, intptr_t count) {
   delete[] env;
 }
-
-
-char* Platform::StrError(int error_code) {
-  static const int kBufferSize = 1024;
-  char* error = static_cast<char*>(malloc(kBufferSize));
-  error[0] = '\0';
-  strerror_r(error_code, error, kBufferSize);
-  return error;
-}