Some TODO cleanup

[mab68]

This goes with #3490

[gizmoguy]

+#977

[codecov]

Codecov Report

Merging #3491 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3491      +/-   ##
==========================================
+ Coverage   92.32%   92.33%   +0.01%     
==========================================
  Files          46       46              
  Lines        8256     8253       -3     
==========================================
- Hits         7622     7620       -2     
+ Misses        634      633       -1     

Impacted Files	Coverage Δ
faucet/faucet_dot1x.py	92.27% <ø> (ø)
faucet/faucet_event.py	63.86% <ø> (ø)
faucet/fctl.py	83.93% <ø> (ø)
faucet/prom_client.py	97.78% <ø> (ø)
faucet/valve.py	93.35% <ø> (ø)
faucet/vlan.py	96.40% <ø> (ø)
faucet/dp.py	95.71% <100.00%> (+0.09%)	⬆️

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