C2R: Remove env vars/opts with no effect

- The --no-rpm-va option has no effect with `convert2rhel analysis` anymore
  (rpm -Va runs always and a warning is printed when the option is used saying
  that it has no effect)
-- Related: oamg/convert2rhel#875
- The CONVERT2RHEL_DISABLE_TELEMETRY env var was removed
-- Related: oamg/convert2rhel#1102
- The CONVERT2RHEL_UNSUPPORTED_INCOMPLETE_ROLLBACK was removed in favor
  of CONVERT2RHEL_INCOMPLETE_ROLLBACK
-- Related: oamg/convert2rhel#1147
- The CONVERT2RHEL_LATEST_VERSION env var has never been a valid env var
  recognized by convert2rhel. It is an ID of one of convert2rhel
  Actions. A similar env var to this is CONVERT2RHEL_UNSUPPORTED_VERSION
  which is in recent versions (2.x) removed in favor of
  CONVERT2RHEL_ALLOW_OLDER_VERSION.

c2r_convert.yml

@@ -5,10 +5,7 @@
   gather_facts: true
   become: true
   environment:
-    CONVERT2RHEL_DISABLE_TELEMETRY: 1
-    # CONVERT2RHEL_UNSUPPORTED_INCOMPLETE_ROLLBACK: 1
     CONVERT2RHEL_INCOMPLETE_ROLLBACK: 1
-    CONVERT2RHEL_LATEST_VERSION: 0
   vars:
     rhsm_username: ""
     rhsm_password: ""

group_vars/control/worflow_job_templates.yml

@@ -4,8 +4,7 @@ controller_workflows:
     description: Workflow for Snapshot and Pre-conversion analysis of EL systems
     extra_vars:
       org_id: "Default_Organization"
-      convert_convert2rhel_opts: '--no-rpm-va'
-      convert_reboot_requested: true
+      convert_convert2rhel_opts: ''
       lvm_snapshots_action: create
     inventory: EC2 Dynamic Inventory
     state: present