[ticket/13106] Remove \phpbb\di\pass\kernel_pass.php

PHPBB3-13106
Merge pull request #2997 from Senky/ticket/13106

[ticket/13106] Remove the \phpbb\di\pass\kernel_pass class

* Senky/ticket/13106:
  [ticket/13106] Remove \phpbb\di\pass\kernel_pass.php