evm: cleanup, remove atlas/

[fedekunze]

Closes: #XXX

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

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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)

[codecov]

Codecov Report

Merging #1152 (5ae631f) into main (ec8e93b) will increase coverage by 0.01%.
The diff coverage is 69.23%.

@@            Coverage Diff             @@
##             main    #1152      +/-   ##
==========================================
+ Coverage   61.74%   61.76%   +0.01%     
==========================================
  Files          89       90       +1     
  Lines        7303     7312       +9     
==========================================
+ Hits         4509     4516       +7     
- Misses       2570     2573       +3     
+ Partials      224      223       -1     

Impacted Files	Coverage Δ
types/validation.go	100.00% <ø> (ø)
x/evm/keeper/state_transition.go	74.77% <0.00%> (-0.68%)	⬇️
x/evm/keeper/utils.go	67.60% <0.00%> (ø)
x/evm/types/codec.go	84.21% <ø> (ø)
x/evm/types/tx_data.go	97.91% <ø> (ø)
x/evm/types/utils.go	61.11% <ø> (-4.47%)	⬇️
x/evm/types/access_list_tx.go	90.13% <40.00%> (ø)
types/int.go	41.66% <41.66%> (ø)
x/evm/types/dynamic_fee_tx.go	89.94% <42.85%> (ø)
x/evm/types/legacy_tx.go	92.24% <60.00%> (ø)
... and 7 more