docs: remove app wiring from module docs

[julienrbrt]

Description

Removes the app wiring documentation that was using in the tests. As we move away to use mocks.

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Author Checklist

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please add links to any relevant follow up issues.

I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
• targeted the correct branch (see PR Targeting)
• provided a link to the relevant issue or specification
• followed the guidelines for building modules
• included the necessary unit and integration tests
• added a changelog entry to CHANGELOG.md
• included comments for documenting Go code
• updated the relevant documentation or specification
• reviewed "Files changed" and left comments if necessary
• confirmed all CI checks have passed

Reviewers Checklist

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your handle next to the items reviewed if you only reviewed selected items.

I have...

• 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 #12393 (5e4257a) into main (a32349d) will decrease coverage by 0.00%.
The diff coverage is 86.15%.

@@            Coverage Diff             @@
##             main   #12393      +/-   ##
==========================================
- Coverage   65.67%   65.66%   -0.01%     
==========================================
  Files         676      676              
  Lines       71429    71420       -9     
==========================================
- Hits        46911    46900      -11     
- Misses      21878    21886       +8     
+ Partials     2640     2634       -6     

Impacted Files	Coverage Δ
x/bank/module.go	62.62% <ø> (ø)
x/gov/keeper/grpc_query.go	76.56% <78.57%> (+0.93%)	⬆️
x/distribution/keeper/grpc_query.go	68.96% <90.00%> (+1.35%)	⬆️
x/staking/keeper/grpc_query.go	60.25% <90.47%> (+1.29%)	⬆️
x/bank/keeper/grpc_query.go	56.12% <100.00%> (ø)
x/feegrant/keeper/grpc_query.go	82.55% <100.00%> (+2.33%)	⬆️
x/distribution/simulation/operations.go	80.74% <0.00%> (-9.63%)	⬇️
... and 2 more