fix: remove populate cycle tasks

[itsmostafa]

remove due to the following timeout error: [2022-11-17 03:12:03 +0000] [11] [CRITICAL] WORKER TIMEOUT (pid:27)

🗣 Description

also fix:

marshmallow.exceptions.ValidationError:
{'tasks': {3: {'task_type': ['Must be one of:
start_subscription_email, status_report,
cycle_report, yearly_report, thirty_day_reminder,
fifteen_day_reminder, five_day_reminder,
safelisting_reminder, end_cycle.']}}}

💭 Motivation and context

🧪 Testing

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• [x] This PR has an informative and human-readable title.
• [x] Changes are limited to a single goal - eschew scope creep!
• [x] All relevant type-of-change labels have been added.
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• [x] All relevant repo and/or project documentation has been updated to reflect the changes in this PR.
• [x] Tests have been added and/or modified to cover the changes in this PR.
• [x] All new and existing tests pass.