Clean code

[End-rey]

Refs #2943.

[codecov]

Codecov Report

Attention: Patch coverage is 13.55932% with 51 lines in your changes missing coverage. Please review.

Project coverage is 23.88%. Comparing base (ca16d59) to head (d5f1eb7).
Report is 19 commits behind head on master.

Files with missing lines	Patch %	Lines
pkg/local_object_storage/engine/tree.go	0.00%	8 Missing ⚠️
pkg/morph/client/client.go	0.00%	6 Missing ⚠️
...d/neofs-adm/internal/modules/morph/local_client.go	0.00%	4 Missing ⚠️
cmd/neofs-adm/internal/modules/morph/notary.go	0.00%	4 Missing ⚠️
...ct_storage/blobstor/fstree/fstree_write_generic.go	0.00%	4 Missing ⚠️
pkg/local_object_storage/shard/exists.go	0.00%	2 Missing and 2 partials ⚠️
...-adm/internal/modules/morph/initialize_register.go	0.00%	3 Missing ⚠️
...-adm/internal/modules/morph/initialize_transfer.go	0.00%	3 Missing ⚠️
...ofs-adm/internal/modules/morph/verified_domains.go	0.00%	3 Missing ⚠️
cmd/neofs-cli/modules/util/acl.go	0.00%	2 Missing ⚠️
... and 6 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2945      +/-   ##
==========================================
- Coverage   23.89%   23.88%   -0.01%     
==========================================
  Files         776      776              
  Lines       45888    45899      +11     
==========================================
- Hits        10963    10962       -1     
- Misses      34064    34073       +9     
- Partials      861      864       +3     

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[cthulhu-rider]

sure 1st commit closes the entire issue?

dont insist, but i'd squash all commits into one - fixing all linting remarks

[roman-khimov]

squash all commits into one

Please don't. They're nice this way, each commit fixing some linter of its own. Really easy to look through.

[cthulhu-rider]

They're nice this way

Really easy to look through.

too personal and doubtful. In opposite, to me, service commits make it more difficult to navigate foundational changes

[roman-khimov]

too personal and doubtful

Each commit solves some problem of its own, no doubt it's better.

[cthulhu-rider]

Each commit solves some problem of its own

having lint action failures -> no failures - this is the most reasonable atomic problem statement for this project to me. And 20 linter-related commits taking up the entire screen is just a distraction

finally, my point remains, but since the work of separation has been done, let it remain too