[dart:io] Remove double-close from recursive directory delete

runtime/bin/directory_fuchsia.cc

Index: runtime/bin/directory_fuchsia.cc
diff --git a/runtime/bin/directory_fuchsia.cc b/runtime/bin/directory_fuchsia.cc
index c9a7c4e9438373df98ab338bf51bb7530411b036..658409e20d35ae36a18c86bf4e9cd2d443247c78 100644
--- a/runtime/bin/directory_fuchsia.cc
+++ b/runtime/bin/directory_fuchsia.cc
@@ -413,7 +413,6 @@ static bool DeleteRecursively(int dirfd, PathBuffer* path) {
       }
       // End of directory.
       int status = NO_RETRY_EXPECTED(closedir(dir_pointer));
-      FDUtils::SaveErrorAndClose(fd);
       if (status != 0) {
         return false;
       }
@@ -474,7 +473,6 @@ static bool DeleteRecursively(int dirfd, PathBuffer* path) {
   ASSERT(errno != 0);
   int err = errno;
   VOID_NO_RETRY_EXPECTED(closedir(dir_pointer));
-  FDUtils::SaveErrorAndClose(fd);
   errno = err;
   return false;
 }