cleanup

[nightwing]

No description provided.

[codecov]

Codecov Report

Merging #3968 into master will increase coverage by 0.04%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3968      +/-   ##
==========================================
+ Coverage   69.44%   69.48%   +0.04%     
==========================================
  Files         517      517              
  Lines       50122    50122              
  Branches     9460     9462       +2     
==========================================
+ Hits        34808    34829      +21     
+ Misses      15314    15293      -21

Impacted Files	Coverage Δ
lib/ace/edit_session.js	85.12% <100%> (ø)	⬆️
lib/ace/lib/useragent.js	81.25% <100%> (+65.62%)	⬆️

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