fix(multisig-prover): drop checksum check for destination chain

[haiyizxx]

Description

Todos

• [ ] Unit tests
• [ ] Manual tests
• [ ] Documentation
• [ ] Connect epics/issues

Steps to Test

Expected Behaviour

Other Notes

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 93.82%. Comparing base (938c5cf) to head (88ff341).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #513 +/- ## ========================================== - Coverage 93.84% 93.82% -0.02% ========================================== Files 182 182 Lines 25508 25521 +13 ========================================== + Hits 23937 23945 +8 - Misses 1571 1576 +5 ```

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