remove useless exception

Author: NattyNarwhal

ext/mysqli/tests/fetch/mysqli_fetch_all_data_types_variation.phpt

@@ -13,11 +13,7 @@ require_once dirname(__DIR__) . "/test_setup/test_helpers.inc";
 
 $link = default_mysqli_connect();
 
-try {
-    mysqli_query($link, "DROP TABLE test_mysqli_fetch_all_data_types_variation");
-} catch (mysqli_sql_exception $e) {
-    // harmless, to avoid table already existing if the test gets wedged and then done again with persistent DB instance
-}
+mysqli_query($link, "DROP TABLE IF EXISTS test_mysqli_fetch_all_data_types_variation");
 
 function func_mysqli_fetch_all(
     mysqli $link,