Remove unused Error enum

[cijothomas]

While reviewing #2381 I noted that there is a pub enum Error declared, that is not used anywhere in the codebase. I can't think of any reason why it exists, so removing it!

@scottgerring @lalitb Please see if you agree with this.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.8%. Comparing base (fdf4a63) to head (136d875).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #2546   +/-   ##
=====================================
  Coverage   77.8%   77.8%           
=====================================
  Files        123     122    -1     
  Lines      23047   23044    -3     
=====================================
  Hits       17931   17931           
+ Misses      5116    5113    -3     

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[lalitb]

I agree to this, but better to have one more eye on it, in case we are missing any relevant use-case for it.

[cijothomas]

I agree to this, but better to have one more eye on it, in case we are missing any relevant use-case for it.

A lot of this and other error types were originally used by global error handler, which is replaced with internal logging. We should be able to do lot more cleanups similar to this.

[cijothomas]

I'll merge this to unblock progress and look for more. @scottgerring Good chance this'll affect your PR - I'll leave more comments there soon, and we can discuss together.