[dart:io][windows] Use WriteFile instead of _write

runtime/bin/file_linux.cc

Index: runtime/bin/file_linux.cc
diff --git a/runtime/bin/file_linux.cc b/runtime/bin/file_linux.cc
index 9a13a1372e06187e40a37d28c96fea5b53b32155..194a93f20e376c41bf096f24589d5253db0d4062 100644
--- a/runtime/bin/file_linux.cc
+++ b/runtime/bin/file_linux.cc
@@ -152,11 +152,6 @@ bool File::SetPosition(int64_t position) {
 }
 
 
-// There is no difference between binary and text translation modes on this
-// platform, so this operation is a no-op.
-void File::SetTranslation(DartFileTranslation translation) {}
-
-
 bool File::Truncate(int64_t length) {
   ASSERT(handle_->fd() >= 0);
   return TEMP_FAILURE_RETRY(ftruncate64(handle_->fd(), length) != -1);