Remove OPENSSL_assert() from crypto/ec

Reviewed-by: NAndy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3740)

crypto/ec/ec_key.c

@@ -191,7 +191,8 @@ int EC_KEY_generate_key(EC_KEY *eckey)
 
 int ossl_ec_key_gen(EC_KEY *eckey)
 {
-    OPENSSL_assert(eckey->group->meth->keygen != NULL);
+    if (!ossl_assert(eckey->group->meth->keygen != NULL))
+        return 0;
     return eckey->group->meth->keygen(eckey);
 }
 

crypto/ec/ec_lib.c

@@ -330,7 +330,8 @@ const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group)
 
 int EC_GROUP_order_bits(const EC_GROUP *group)
 {
-    OPENSSL_assert(group->meth->group_order_bits != NULL);
+    if (!ossl_assert(group->meth->group_order_bits != NULL))
+        return 0;
     return group->meth->group_order_bits(group);
 }