1780 absence tracer in params

[kladkogex]

Geth accepts both empty parameter and "{}" parameter in debug_trace* requests

Since json-rpc library used in skaled does not support variable number of parameters,
I added code that adds "{}" to to the parameters if a user submitted to last parameter

A corresponding test has been added to tracer.ts and runs as part of github actions

Also removed some dead code as a part of the pull request

Note - this pull request needs to go in after the previous one in tracing is accepted since it includes changes from the previous one

[github-actions]

SUGGESTIONS BEFORE MERGE:

1. Build custom container here: https://github.com/skalenetwork/skaled/actions?query=workflow%3A%22Custom+Docker+and+Binary%22
2. Test it here: https://github.com/skalenetwork/skale-ci-integration_tests/actions?query=workflow%3A%22Skaled+Nightly+Tests%22
3. Edit VERSION file appropriately to your changes!
   See https://skalelabs.atlassian.net/wiki/spaces/SKALE/pages/2444951553/Branching+instructions

[codecov]

Codecov Report

Attention: Patch coverage is 31.57895% with 13 lines in your changes are missing coverage. Please review.

Project coverage is 42.69%. Comparing base (dbac33c) to head (e35ee3a).
Report is 1 commits behind head on v3.17.2.

Additional details and impacted files

@@             Coverage Diff             @@
##           v3.17.2    #1809      +/-   ##
===========================================
- Coverage    42.69%   42.69%   -0.01%     
===========================================
  Files          392      392              
  Lines        57235    57243       +8     
===========================================
  Hits         24439    24439              
- Misses       32796    32804       +8