🧪🔥 Delete the `egg-info` integration test (#84686)

Previously, the integration test depended on luck. `setuptools` used
to be bundled in Python stdlib's `ensurepip`. Python 3.12 and newer no
longer include it. This test imports `pkg_resources` that is a part of
`setuptools`, meaning that it'll run out of luck at some point, under
newer Python runtimes.

This test does not seem to be useful to us so instead of fixing it, we
remove it from the repo [[1]].

Supersedes #84681.

[1]: https://github.com/ansible/ansible/pull/84681#discussion_r1945525317

test/integration/targets/egg-info/aliases

@@ -1,2 +0,0 @@
-shippable/posix/group3
-context/controller

test/integration/targets/egg-info/lookup_plugins/import_pkg_resources.py

@@ -1,10 +0,0 @@
-from __future__ import annotations
-
-import pkg_resources  # pylint: disable=unused-import
-
-from ansible.plugins.lookup import LookupBase
-
-
-class LookupModule(LookupBase):
-    def run(self, terms, variables, **kwargs):
-        return ['ok']

test/integration/targets/egg-info/tasks/main.yml

@@ -1,3 +0,0 @@
-- name: Make sure pkg_resources can be imported by plugins
-  debug:
-    msg: "{{ lookup('import_pkg_resources') }}"