fix: remove newly introduced simapp dependency

[julienrbrt]

Description

#11981 introduced a simapp dependency to the SDK, which we don't want.
This PR fixes that and https://github.com/cosmos/cosmos-sdk/actions/workflows/dependencies-review.yml should be required before a merge for avoiding regression.

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Author Checklist

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I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
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• included the necessary unit and integration tests
• added a changelog entry to CHANGELOG.md
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• confirmed the correct type prefix in the PR title
• confirmed ! in the type prefix if API or client breaking change
• confirmed all author checklist items have been addressed
• reviewed state machine logic
• reviewed API design and naming
• reviewed documentation is accurate
• reviewed tests and test coverage
• manually tested (if applicable)

[codecov]

Codecov Report

Merging #13219 (a3ea60c) into main (1bccc54) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main   #13219      +/-   ##
==========================================
- Coverage   53.65%   53.64%   -0.02%     
==========================================
  Files         647      647              
  Lines       55253    55253              
==========================================
- Hits        29647    29638       -9     
- Misses      23234    23241       +7     
- Partials     2372     2374       +2     

Impacted Files	Coverage Δ
x/bank/module.go	60.78% <0.00%> (-8.83%)	⬇️
crypto/keys/internal/ecdsa/privkey.go	81.13% <0.00%> (-1.89%)	⬇️
x/group/keeper/keeper.go	56.64% <0.00%> (+0.39%)	⬆️