Removed Register handler

[AlgoStephenAkiki]

Resolves #3129

Summary

Test Plan

[winder]

LGTM

[codecov-commenter]

Codecov Report

Merging #3130 (804a726) into master (17429d5) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3130   +/-   ##
=======================================
  Coverage   43.70%   43.70%           
=======================================
  Files         390      390           
  Lines       86689    86688    -1     
=======================================
+ Hits        37887    37889    +2     
+ Misses      42780    42777    -3     
  Partials     6022     6022           

Impacted Files	Coverage Δ
daemon/algod/api/server/v2/handlers.go	0.00% <ø> (ø)
agreement/cryptoVerifier.go	75.73% <0.00%> (-2.21%)	⬇️
agreement/proposalManager.go	96.07% <0.00%> (-1.97%)	⬇️
catchup/service.go	69.59% <0.00%> (-0.76%)	⬇️
network/wsNetwork.go	64.50% <0.00%> (-0.20%)	⬇️
network/requestTracker.go	71.12% <0.00%> (+0.86%)	⬆️
data/abi/abi_type.go	93.03% <0.00%> (+0.99%)	⬆️
network/wsPeer.go	72.00% <0.00%> (+2.13%)	⬆️

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