Sentry: remove custom error to prevent sentry flood

[Pierre-Gilles]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 87.26%. Comparing base (c52274c) to head (35e6c8a).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
core/api/instance/instance.model.js	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #170   +/-   ##
=======================================
  Coverage   87.26%   87.26%           
=======================================
  Files          71       71           
  Lines        2403     2403           
=======================================
  Hits         2097     2097           
  Misses        306      306           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.