refactor nexus to remove leadership

[invisig0th]

No description provided.

[codecov]

Codecov Report

Merging #1785 into master will increase coverage by 0.03%.
The diff coverage is 99.22%.

@@            Coverage Diff             @@
##           master    #1785      +/-   ##
==========================================
+ Coverage   96.15%   96.18%   +0.03%     
==========================================
  Files         139      139              
  Lines       26671    26735      +64     
==========================================
+ Hits        25645    25715      +70     
+ Misses       1026     1020       -6     

Flag	Coverage Δ
#linux	96.18% <99.22%> (+0.03%)	⬆️
#linux_replay	66.70% <74.67%> (+0.58%)	⬆️

Impacted Files	Coverage Δ
synapse/lib/agenda.py	94.34% <ø> (ø)
synapse/lib/nexus.py	96.78% <97.80%> (+0.06%)	⬆️
synapse/lib/cell.py	97.52% <98.78%> (+0.27%)	⬆️
synapse/cortex.py	95.59% <100.00%> (+0.10%)	⬆️
synapse/daemon.py	89.30% <100.00%> (+0.48%)	⬆️
synapse/exc.py	99.34% <100.00%> (+<0.01%)	⬆️
synapse/lib/certdir.py	98.29% <100.00%> (+0.08%)	⬆️
synapse/lib/config.py	100.00% <100.00%> (ø)
synapse/lib/hive.py	98.30% <100.00%> (ø)
synapse/lib/hiveauth.py	96.69% <100.00%> (+0.02%)	⬆️
... and 16 more

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