Fix go vet issues

[tolikzinovyev]

No description provided.

[codecov-commenter]

Codecov Report

Merging #2826 (40c0080) into master (28d9e86) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #2826      +/-   ##
==========================================
- Coverage   47.11%   47.08%   -0.03%     
==========================================
  Files         349      349              
  Lines       56430    56430              
==========================================
- Hits        26585    26569      -16     
- Misses      26863    26877      +14     
- Partials     2982     2984       +2     

Impacted Files	Coverage Δ
cmd/algoh/main.go	0.00% <0.00%> (ø)
daemon/algod/server.go	6.20% <0.00%> (ø)
ledger/blockqueue.go	82.18% <0.00%> (-2.88%)	⬇️
network/wsPeer.go	72.14% <0.00%> (-2.23%)	⬇️
cmd/tealdbg/debugger.go	72.86% <0.00%> (-1.01%)	⬇️
ledger/acctupdates.go	62.05% <0.00%> (-0.09%)	⬇️

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