src: remove unused variable in crypto_x509.cc

PR-URL: #57754
Reviewed-By: Tim Perry <pimterry@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>

Author: targos

src/crypto/crypto_x509.cc

@@ -147,7 +147,6 @@ MaybeLocal<Object> X509Certificate::GetPeerCert(
     const SSLPointer& ssl,
     GetPeerCertificateFlag flag) {
   ClearErrorOnReturn clear_error_on_return;
-  MaybeLocal<Object> maybe_cert;
 
   bool is_server =
       static_cast<int>(flag) & static_cast<int>(GetPeerCertificateFlag::SERVER);