Remove redundant check in mysqlnd_fetch_stmt_row_cursor

result is always non-NULL because it is dereferenced above.
Similarly, result->unbuf must also be non-NULL.

Author: nielsdos

ext/mysqlnd/mysqlnd_ps.c

@@ -764,7 +764,7 @@ mysqlnd_fetch_stmt_row_cursor(MYSQLND_RES * result, zval **row_ptr, const unsign
 
 	DBG_ENTER("mysqlnd_fetch_stmt_row_cursor");
 
-	if (!stmt || !stmt->conn || !result || !result->conn || !result->unbuf) {
+	if (!stmt || !stmt->conn || !result->conn) {
 		DBG_ERR("no statement");
 		DBG_RETURN(FAIL);
 	}