Drop obsolete test

tests/lang/foreachLoop.007.phpt

@@ -1,11 +0,0 @@
---TEST--
-Foreach loop tests - error case: reference to constant array.
---FILE--
-<?php
-echo "\nReference to constant array\n";
-foreach (array(1,2) as &$v) {
-  var_dump($v);
-}
-?>
---EXPECTF--
-Fatal error: Cannot create references to elements of a temporary array expression in %sforeachLoop.007.php on line %d