openssl: remove `RSA_METHOD_FLAG_NO_CHECK` handling if unavailable

The flag has been deprecated without replacement in OpenSSL 3.0.

Closes https://github.com/curl/curl/pull/7893

diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 947c14f5cdb08f03e7222814bf12f3f3fc200d40..cba6491ab9506d0a5bc2bcc85282911171e36242 100644 (file)
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -1103,7 +1103,8 @@ int cert_stuff(struct Curl_easy *data,
       EVP_PKEY_free(pktmp);
     }
 
-#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_IS_BORINGSSL)
+#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_IS_BORINGSSL) && \
+    !defined(OPENSSL_NO_DEPRECATED_3_0)
     {
       /* If RSA is used, don't check the private key if its flags indicate
        * it doesn't support it. */