chore: Remove v1 batcher

[litt3]

• removes V1 batcher

[codecov]

Codecov Report

❌ Patch coverage is 9.09091% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 36.83%. Comparing base (0ba93f1) to head (201c4ac).

Files with missing lines	Patch %	Lines
disperser/dataapi/metrics_handler.go	0.00%	7 Missing ⚠️
disperser/dataapi/metrics.go	0.00%	3 Missing ⚠️

❌ Your patch check has failed because the patch coverage (9.09%) is below the target coverage (50.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2484      +/-   ##
==========================================
- Coverage   39.30%   36.83%   -2.48%     
==========================================
  Files         536      520      -16     
  Lines       49005    45446    -3559     
==========================================
- Hits        19261    16739    -2522     
+ Misses      27305    26546     -759     
+ Partials     2439     2161     -278     

Flag	Coverage Δ
litt-tests	32.99% <ø> (ø)
unit-tests	37.40% <9.09%> (-2.77%)	⬇️

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[pschork]

We should also remove the disperser/churner configs since they do not have metrics healthchecks in the v2 server.