Remove CreatePromiseAndCallback request

[avillega]

Remove the createPromiseAndCallback request and its associated coroutine

[avillega]

This one does not include the change to createPromiseAndTask yet, that will come in a future PR

[codecov]

Codecov Report

Attention: Patch coverage is 76.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 56.78%. Comparing base (df87918) to head (7faf2ab).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/app/subsystems/api/grpc/pb/promise.pb.go	68.42%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #488      +/-   ##
==========================================
+ Coverage   56.76%   56.78%   +0.02%     
==========================================
  Files         120      120              
  Lines       13479    13168     -311     
==========================================
- Hits         7651     7478     -173     
+ Misses       5355     5237     -118     
+ Partials      473      453      -20     

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