fix!: remove deprecated actions migration warning

The `check-actions-not-present` template and its unit test are no longer
needed since this is a new major version. Users have had sufficient time
to migrate to the dedicated helm-actions chart.

templates/gitea/check-actions-not-present.yaml

@@ -1,3 +0,0 @@
-{{- if .Values.actions -}}
-    {{- fail "The actions sub-chart has been outsourced to a dedicated chart available at https://gitea.com/gitea/helm-actions. For assistance with the migration process, check https://gitea.com/gitea/helm-actions/issues/9." -}}
-{{- end -}}

unittests/helm/check-actions-not-present.yaml

@@ -1,12 +0,0 @@
-suite: Check if actions raises an error
-release:
-  name: gitea-unittests
-  namespace: testing
-tests:
-  - it: fails when trying to configure actions due to removal
-    set:
-      actions:
-        enabled: true
-    asserts:
-      - failedTemplate:
-          errorMessage: The actions sub-chart has been outsourced to a dedicated chart available at https://gitea.com/gitea/helm-actions. For assistance with the migration process, check https://gitea.com/gitea/helm-actions/issues/9.