stop receiving the signals

[LexCC]

No description provided.

[nkubala]

@jiejhih is there an issue that this change fixes? I think it's probably fine just wondering if you were running into a problem.

[codecov]

Codecov Report

Merging #2257 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #2257      +/-   ##
==========================================
+ Coverage   60.75%   60.76%   +<.01%     
==========================================
  Files         185      185              
  Lines        7808     7809       +1     
==========================================
+ Hits         4744     4745       +1     
  Misses       2678     2678              
  Partials      386      386

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/signals.go	72.22% <100%> (+1.63%)	⬆️

---

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 e8302bb...d6c600d. Read the comment docs.