Remove binding that's not used anymore (#10224)

Author: alex

src/_cffi_src/openssl/evp.py

@@ -20,7 +20,6 @@
 static const int EVP_PKEY_RSA_PSS;
 static const int EVP_PKEY_DSA;
 static const int EVP_PKEY_DH;
-static const int EVP_PKEY_DHX;
 static const int EVP_PKEY_EC;
 static const int EVP_PKEY_X25519;
 static const int EVP_PKEY_ED25519;
@@ -93,7 +92,6 @@
 const long Cryptography_HAS_EVP_PKEY_DHX = 1;
 #else
 const long Cryptography_HAS_EVP_PKEY_DHX = 0;
-const long EVP_PKEY_DHX = -1;
 #endif
 
 #if CRYPTOGRAPHY_IS_LIBRESSL || defined(OPENSSL_NO_SCRYPT)

src/cryptography/hazmat/bindings/openssl/_conditional.py

@@ -28,12 +28,6 @@ def cryptography_has_tls_st() -> list[str]:
     ]
 
 
-def cryptography_has_evp_pkey_dhx() -> list[str]:
-    return [
-        "EVP_PKEY_DHX",
-    ]
-
-
 def cryptography_has_mem_functions() -> list[str]:
     return [
         "Cryptography_CRYPTO_set_mem_functions",
@@ -208,7 +202,6 @@ def cryptography_has_get_extms_support() -> list[str]:
     "Cryptography_HAS_SET_CERT_CB": cryptography_has_set_cert_cb,
     "Cryptography_HAS_SSL_ST": cryptography_has_ssl_st,
     "Cryptography_HAS_TLS_ST": cryptography_has_tls_st,
-    "Cryptography_HAS_EVP_PKEY_DHX": cryptography_has_evp_pkey_dhx,
     "Cryptography_HAS_MEM_FUNCTIONS": cryptography_has_mem_functions,
     "Cryptography_HAS_ED448": cryptography_has_ed448,
     "Cryptography_HAS_SIGALGS": cryptography_has_ssl_sigalgs,