Remove dns.ErrTruncated

Author: shawn1m

core/outbound/client.go

@@ -94,11 +94,7 @@ func (c *Client) ExchangeFromRemote(isCache bool, isLog bool) {
 	temp, err := dc.ReadMsg()
 
 	if err != nil {
-		if err == dns.ErrTruncated {
-			log.Warn(c.DNSUpstream.Name + " Fail: Maybe this server does not support EDNS Client Subnet")
-		} else {
-			log.Warn(c.DNSUpstream.Name+" Fail: ", err)
-		}
+		log.Warn(c.DNSUpstream.Name+" Fail: ", err)
 		return
 	}
 	if temp == nil {