FIX: remove not match printer config ota cache

Change-Id: Ib73fc2ea31fa2186061cfcb5a170bc59b9db84ca
Jira: none

src/slic3r/Utils/PresetUpdater.cpp

@@ -1053,7 +1053,8 @@ void PresetUpdater::priv::sync_printer_config(std::string http_url)
         }
 
         if (need_delete_cache) {
-            std::string             data_dir_str = data_dir();
+            boost::system::error_code ec;
+            boost::filesystem::remove_all(cache_folder, ec);
             cached_version           = curr_version;
         }
     }