Remove unused code from jaeger remote sampler

[jack-berg]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.15%. Comparing base (b882815) to head (d8386d2).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #7970   +/-   ##
=========================================
  Coverage     90.14%   90.15%           
  Complexity     7476     7476           
=========================================
  Files           836      836           
  Lines         22554    22550    -4     
  Branches       2224     2224           
=========================================
- Hits          20331    20329    -2     
+ Misses         1519     1517    -2     
  Partials        704      704           

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