Remove duplicated reflection test

[ci skip]

This is already tested in 016.phpt.

ext/reflection/tests/ReflectionExtension_getDependencies_basic.phpt

@@ -1,20 +0,0 @@
---TEST--
-ReflectionExtension::getDependencies() method on an extension with a required and conflicting dependency
---CREDITS--
-Felix De Vliegher <felix.devliegher@gmail.com>
---EXTENSIONS--
-dom
---FILE--
-<?php
-$dom = new ReflectionExtension('dom');
-var_dump($dom->getDependencies());
-?>
---EXPECT--
-array(3) {
-  ["libxml"]=>
-  string(8) "Required"
-  ["lexbor"]=>
-  string(8) "Required"
-  ["domxml"]=>
-  string(9) "Conflicts"
-}