fs: remove unused lambda capture in CpSyncCopyDir

file_copy_opts was left over from the std::filesystem::copy_file path
and is no longer read now that regular-file copies go through
uv_fs_copyfile. Clang treats the stale capture as an error under
-Werror,-Wunused-lambda-capture.

Signed-off-by: Jeremy Schoemaker <jeremy@shoemoney.com>

Author: shoemoney

src/node_file.cc

@@ -4082,21 +4082,11 @@ static void CpSyncCopyDir(const FunctionCallbackInfo<Value>& args) {
     return env->ThrowStdErrException(error, "cp", *dest);
   }
 
-  auto file_copy_opts = std::filesystem::copy_options::recursive;
-  if (force) {
-    file_copy_opts |= std::filesystem::copy_options::overwrite_existing;
-  } else if (error_on_exist) {
-    file_copy_opts |= std::filesystem::copy_options::none;
-  } else {
-    file_copy_opts |= std::filesystem::copy_options::skip_existing;
-  }
-
   std::function<bool(std::filesystem::path, std::filesystem::path)>
       copy_dir_contents;
   copy_dir_contents = [verbatim_symlinks,
                        &copy_dir_contents,
                        &env,
-                       file_copy_opts,
                        preserve_timestamps,
                        force,
                        error_on_exist,