all: Remove cannon-kona dgv2 feature flags (#18208)

[Inphi]

Cherry picking #18208 to the v6 proposal branch

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.34%. Comparing base (e3dcc7d) to head (aae210b).
⚠️ Report is 5 commits behind head on proposal/op-contracts/v6.0.0.

Additional details and impacted files

@@                       Coverage Diff                        @@
##           proposal/op-contracts/v6.0.0   #18588      +/-   ##
================================================================
- Coverage                         75.09%   71.34%   -3.75%     
================================================================
  Files                               185      185              
  Lines                             11001    10914      -87     
================================================================
- Hits                               8261     7787     -474     
- Misses                             2596     2983     +387     
  Partials                            144      144              

Flag	Coverage Δ
cannon-go-tests-64	66.58% <ø> (ø)
contracts-bedrock-tests	74.13% <100.00%> (-5.88%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...es/contracts-bedrock/src/L1/OPContractsManager.sol	89.48% <100.00%> (-5.62%)	⬇️
...ock/src/L1/OPContractsManagerStandardValidator.sol	97.22% <100.00%> (-2.78%)	⬇️
...es/contracts-bedrock/src/libraries/DevFeatures.sol	100.00% <ø> (ø)

... and 3 files with indirect coverage changes

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[pauldowman]

Is aae210b also on develop? I don't see it.

[Inphi]

Is aae210b also on develop? I don't see it.

Nay. The commit is a subset of changes in 337766844c54e322e86dc6de076e5a70943ba7d4 required to pass CI.

[pauldowman]

Nay. The commit is a subset of changes in 337766844c54e322e86dc6de076e5a70943ba7d4 required to pass CI.

So those changes are on develop. 👍

[maurelian]

This LGTM