CI: cleanups leftovers things

include_vars is redundant as the file is already included by extra_vars

tests/cloud_playbooks/roles/packet-ci/tasks/main.yml

@@ -1,8 +1,4 @@
 ---
-- name: Include custom vars for ci job
-  include_vars: "../files/{{ lookup('ansible.builtin.env', 'TESTCASE') }}.yml"
-  when: molecule_yml is not defined
-
 - name: Generate SSH keypair
   community.crypto.openssh_keypair:
     size: 2048

tests/scripts/testcases_run.sh

@@ -54,7 +54,6 @@ fi
 run_playbook () {
 playbook=$1
 shift
-# We can set --limit here and still pass it as supplemental args because `--limit`  is a 'last one wins' option
 ansible-playbook \
     -e @tests/common_vars.yml \
     -e @tests/files/${TESTCASE}.yml \