[ci]: Remove unnecessary coverage reporting.

[appetrosyan]

Signed-off-by: Aleksandr Petrosyan a-p-petrosyan@yandex.ru

Description of the Change

Remove all coverage jobs which would not show up in the CI.

Issue

Closes #2267

Benefits

Less work done in CI.

Possible Drawbacks

None

[codecov]

Codecov Report

Merging #2271 (4d20e6c) into iroha2-dev (5ddb17c) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@              Coverage Diff               @@
##           iroha2-dev    #2271      +/-   ##
==============================================
- Coverage       64.67%   64.65%   -0.02%     
==============================================
  Files             131      131              
  Lines           24666    24666              
==============================================
- Hits            15953    15949       -4     
- Misses           8713     8717       +4     

Impacted Files	Coverage Δ
cli/src/samples.rs	95.12% <0.00%> (-4.88%)	⬇️
tools/kura_inspector/src/print.rs	96.15% <0.00%> (-0.77%)	⬇️
core/src/kura.rs	92.35% <0.00%> (+0.15%)	⬆️

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