Remove phpcpd and phploc tasks

[mrook]

These task should be removed because the upstream projects (1, 2) are no longer maintained, and the hacks to override the CLI behavior is no longer possible to maintain.

1. https://github.com/sebastianbergmann/phpcpd
2. https://github.com/sebastianbergmann/phploc

[aik099]

@mrook , Please restore these tasks, because at the specific phpcpd and phploc library versions they work perfectly with Phing 2.x even, when analyzing PHP 7.4 code.

[mrook]

Hello @aik099 . Phing 2.x is no longer supported, see our website. You can continue to use that version which includes phpcpd/phploc support. Phing 3.x will not restore that support. An alternative is to use the exec task to invoke the legacy phpcpd/phploc binaries directly.