refactor: no need to recalculate the actual updates

[nimrod-starkware]

This change is 

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 40.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 70.65%. Comparing base (e7a2b4f) to head (995a8b7).

Files	Patch %	Lines
crates/committer/src/block_committer/commit.rs	0.00%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #307      +/-   ##
==========================================
- Coverage   70.74%   70.65%   -0.09%     
==========================================
  Files          38       38              
  Lines        2078     2082       +4     
  Branches     2078     2082       +4     
==========================================
+ Hits         1470     1471       +1     
- Misses        538      541       +3     
  Partials       70       70              

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[github-actions]

Benchmark movements:
full_committer_flow performance regressed!
full_committer_flow time: [28.991 ms 29.025 ms 29.062 ms]
change: [+1.1219% +1.3092% +1.4828%] (p = 0.00 < 0.05)
Performance has regressed.
Found 7 outliers among 100 measurements (7.00%)
7 (7.00%) high mild

[github-actions]

Benchmark movements:
full_committer_flow performance regressed!
full_committer_flow time: [28.980 ms 29.081 ms 29.216 ms]
change: [+1.0717% +1.4289% +1.9206%] (p = 0.00 < 0.05)
Performance has regressed.
Found 5 outliers among 100 measurements (5.00%)
1 (1.00%) high mild
4 (4.00%) high severe

[dorimedini-starkware]

Reviewed 3 of 3 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @TzahiTaub)