Revert "Sniffer-destOverride: Remove fakedns+others option (XTLS#4739)"

This reverts commit 4e1a6f0.

Author: maoxikun

infra/conf/xray.go

@@ -72,8 +72,10 @@ func (c *SniffingConfig) Build() (*proxyman.SniffingConfig, error) {
 				p = append(p, "tls")
 			case "quic":
 				p = append(p, "quic")
-			case "fakedns", "fakedns+others":
+			case "fakedns":
 				p = append(p, "fakedns")
+			case "fakedns+others":
+				p = append(p, "fakedns+others")
 			default:
 				return nil, errors.New("unknown protocol: ", protocol)
 			}