refactor(protocol): remove unnecessary field from events

[dantaik]

@cyberhorsey Please take a look at this PR. I feel like the change may impact the Bridge backend.

[codecov]

Codecov Report

Merging #13190 (ad6ceb0) into main (667a5d9) will decrease coverage by 0.12%.
The diff coverage is 25.00%.

@@            Coverage Diff             @@
##             main   #13190      +/-   ##
==========================================
- Coverage   60.79%   60.67%   -0.12%     
==========================================
  Files         115      115              
  Lines        3415     3415              
  Branches      463      463              
==========================================
- Hits         2076     2072       -4     
- Misses       1251     1256       +5     
+ Partials       88       87       -1     

Flag	Coverage Δ		*Carryforward flag
bridge-ui	92.61% <ø> (ø)		Carriedforward from 667a5d9
protocol	51.88% <25.00%> (-0.23%)	⬇️
relayer	65.15% <ø> (ø)		Carriedforward from 667a5d9
ui	100.00% <ø> (ø)		Carriedforward from 667a5d9

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
...ckages/protocol/contracts/L1/libs/LibProposing.sol	6.57% <0.00%> (ø)
packages/protocol/contracts/L2/TaikoL2.sol	53.84% <0.00%> (ø)
...ckages/protocol/contracts/L1/libs/LibVerifying.sol	11.90% <50.00%> (ø)
...es/protocol/contracts/thirdparty/LibMerkleTrie.sol	83.13% <0.00%> (-7.23%)	⬇️
...ges/protocol/contracts/libs/LibAnchorSignature.sol	100.00% <0.00%> (+10.52%)	⬆️

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[cyberhorsey]

@dantaik i will make relayer and bridge changes