fix: make sure not to include unecessary ENV variable

This is a fix to an unfortunate bug introduced by #64 because we had a
default value set to `None` on the
`clever_haskell_entry_point`. Ansible considers `None` as a defined
value so the `is defined` condition doesn't match our need

README.md

@@ -28,7 +28,6 @@ Variables for the application
   Example: `{ name: pg, env_prefix: POSTGRESQL_ADDON }`
 - `clever_app_tasks_file`: tasks file to be executed after environment and addons variables where gathered. Specific to an app, should be use to run migrations. Optional.
 - `clever_haskell_entry_point`: the haskell executable name to be executed by clever cloud, optional.
-- _Obsolete_: `clever_entry_point`: Same as above but was replaced by `clever_haskell_entry_point` since v1.14 of this role.
 - `clever_domain`: the domain from which the application should be reachable, optional.
 - _Obsolete_: `domain`: Same as above but was replaced by `clever_domain` since v1.4 of this role.
 - `clever_syslog_server`: UDP Syslog server to be used as UDPSyslog drain for the application, optional. Example: `udp://198.51.100.51:12345`.

defaults/main.yml

@@ -6,7 +6,6 @@ clever_app_root: "{{ app_root | default(playbook_dir + '/..') }}"
 clever_app_confdir: "{{ clever_app_root }}/.clever_cloud"
 clever_login_file: "{{ clever_app_confdir }}/login"
 
-clever_haskell_entry_point: "{{ clever_entry_point | default(None) }}"
 clever_haskell_env: {}
 clever_env: {}