Remove simulation checks

[Vvaradinov]

The simulation checks on Ethermint are extremely unreliable and don't add much value when it comes to preventing bugs and vulnerabilities. We are removing them in the meantime and later on addressing this technical debt.

• Removing simulation tests
• Removing simulation logic from each module evm and feemarket - simulations folder and module.go
• Removing setup from app.go and utils.go
• Remove sim tests in Github CI

Closes: ENG-1095

Description

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For contributor use:

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer

---

For admin use:

• Added appropriate labels to PR (ex. WIP, R4R, docs, etc)
• Reviewers assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[linear]

ENG-1095 Remove Simulation Checks

The simulation checks on Ethermint are extremely unreliable and don't add much value when it comes to preventing bugs and vulnerabilities. We should remove them in the meantime and later on address this technical debt.

Scope of Work

• Remove simulation logic from each module (dir + module.go + app/app.go)
• Remove simulators from Github Action CI checks

[codecov]

Codecov Report

Merging #1507 (76a5df7) into main (831588c) will increase coverage by 1.27%.
The diff coverage is 20.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1507      +/-   ##
==========================================
+ Coverage   67.45%   68.73%   +1.27%     
==========================================
  Files         107      103       -4     
  Lines       10285     9948     -337     
==========================================
- Hits         6938     6838     -100     
+ Misses       2965     2730     -235     
+ Partials      382      380       -2     

Impacted Files	Coverage Δ
app/app.go	84.78% <ø> (+<0.01%)	⬆️
app/utils.go	87.25% <ø> (+16.66%)	⬆️
x/evm/module.go	52.45% <20.00%> (+0.15%)	⬆️

[4rgon4ut]

utACK, looks good! Great job, have just a single comment

[fedekunze]

LGTM. Left a minor comment that can be applied to other functions in the module.go files