MR33 was created in error and replaced by MR34, " Proposal to Open/Accept HRMP channel with Moonriver and Register Asset xcPICA".

This proposal is to cancel MR33 as a clean up.

Cancel an ongoing referendum.

- `origin`: must be the `CancelOrigin`.
- `index`: The index of the referendum to be cancelled.

Emits `Cancelled`.

- **Problem Statement:** Bug in the associated calldata of the proposal.
- **Significance:** Ensuring accuracy and reliability of the proposal data.
- **Proposed Solution:** Reject the current proposal and refer to the correct proposal link provided.
- **Expected Outcomes:** Improved data accuracy and reliability for decision-making.

#35 Proposal 35: Cancel MR33