Tech Debt: Reduce number of dependencies.

[winder]

We don't need this tool and its dependencies.

[codecov]

Codecov Report

Merging #4750 (7040190) into master (4ac719a) will decrease coverage by 0.18%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4750      +/-   ##
==========================================
- Coverage   54.58%   54.39%   -0.19%     
==========================================
  Files         414      414              
  Lines       53517    53517              
==========================================
- Hits        29212    29112     -100     
- Misses      21875    21976     +101     
+ Partials     2430     2429       -1     

Impacted Files	Coverage Δ
util/metrics/gauge.go	0.00% <0.00%> (-81.09%)	⬇️
crypto/hashes.go	26.82% <0.00%> (-24.40%)	⬇️
cmd/tealdbg/cdtdbg.go	67.05% <0.00%> (-15.30%)	⬇️
node/topAccountListener.go	64.78% <0.00%> (-7.05%)	⬇️
ledger/roundlru.go	90.56% <0.00%> (-5.67%)	⬇️
util/bloom/bloom.go	87.67% <0.00%> (-4.11%)	⬇️
data/transactions/logic/doc.go	57.69% <0.00%> (-3.85%)	⬇️
crypto/merklesignature/merkleSignatureScheme.go	63.30% <0.00%> (-3.67%)	⬇️
crypto/stateproof/verifier.go	78.94% <0.00%> (-3.51%)	⬇️
ledger/tracker.go	74.89% <0.00%> (-2.98%)	⬇️
... and 14 more

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