chore: remove redundent try_from methods for declare transaction

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• chore: remove redundent try_from methods for declare transaction #434 : 4 dependent PRs (#433 , #435 , #436 and 1 other) 👈
• chore: organize methods such that public methods are at bottom #432
• main

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[github-actions]

Benchmark movements:
tree_computation_flow performance improved 😺
tree_computation_flow time: [64.967 ms 65.073 ms 65.234 ms]
change: [-7.8857% -4.5699% -1.7253%] (p = 0.00 < 0.05)
Performance has improved.
Found 5 outliers among 100 measurements (5.00%)
2 (2.00%) high mild
3 (3.00%) high severe

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@                               Coverage Diff                               @@
##             arni/contract_class_refactor/order_pub_funcs     #434   +/-   ##
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[ArniStarkware]

We continue with a different path.
We will not create a unified declare tx.