Don't skip param validation on older OpenSSL releases.

Author: Jean-Daniel Dupas

src/OpenSSL/SSL.py

@@ -1217,17 +1217,15 @@ def set_sigalgs_list(self, sigalgs_list):
         :param bytes sigalgs_list: An OpenSSL signature algorithms list.
         :return: None
         """
-        if not _lib.Cryptography_HAS_SIGALGS:
-            return
-
         sigalgs_list = _text_to_bytes_and_warn("sigalgs_list", sigalgs_list)
 
         if not isinstance(sigalgs_list, bytes):
             raise TypeError("sigalgs_list must be a byte string.")
 
-        _openssl_assert(
-            _lib.SSL_CTX_set1_sigalgs_list(self._context, sigalgs_list) == 1
-        )
+        if _lib.Cryptography_HAS_SIGALGS:
+            _openssl_assert(
+                _lib.SSL_CTX_set1_sigalgs_list(self._context, sigalgs_list) == 1
+            )
 
     def set_client_ca_list(self, certificate_authorities):
         """