Remove unused imports

[deepsource-autofix]

No description provided.

[codecov]

Codecov Report

Merging #113 into master will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #113      +/-   ##
==========================================
- Coverage   94.46%   94.45%   -0.02%     
==========================================
  Files          41       41              
  Lines        1663     1659       -4     
  Branches      255      255              
==========================================
- Hits         1571     1567       -4     
  Misses         54       54              
  Partials       38       38              

Flag	Coverage Δ
#unittests	94.45% <100.00%> (-0.02%)	⬇️

Impacted Files	Coverage Δ
src/labthings/server/sockets/gevent.py	96.62% <ø> (-0.04%)	⬇️
src/labthings/server/spec/apispec.py	92.85% <ø> (-0.25%)	⬇️
src/labthings/server/spec/utilities.py	96.29% <100.00%> (-0.14%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 59ca394...3c6a628. Read the comment docs.