removed a service point

src/XUnity.AutoTranslator.Plugin.Core/Web/BaiduTranslateEndpoint.cs

@@ -14,7 +14,6 @@ namespace XUnity.AutoTranslator.Plugin.Core.Web
 {
    public class BaiduTranslateEndpoint : KnownEndpoint
    {
-      private static ServicePoint ServicePoint;
       private static readonly string HttpServicePointTemplateUrl = "http://api.fanyi.baidu.com/api/trans/vip/translate?q={0}&from={1}&to={2}&appid={3}&salt={4}&sign={5}";
 
       private static readonly MD5 HashMD5 = MD5.Create();