fix: revert: fix: resolve indefinitely queued (STOPPING_COMPLETED) trials

[tayritenour]

This PR causes issues where experiments that run a searcher then expect to save a checkpoint are thwarted by the master simply stopping the experiment before that happens.

Ticket

Description

Test Plan

Checklist

• Changes have been manually QA'd
• New features have been approved by the corresponding PM
• User-facing API changes have the "User-facing API Change" label
• Release notes have been added as a separate file under docs/release-notes/
  See Release Note for details.
• Licenses have been included for new code which was copied and/or modified from any external code

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[codecov]

Codecov Report

Attention: Patch coverage is 55.55556% with 4 lines in your changes missing coverage. Please review.

Project coverage is 53.88%. Comparing base (25179d0) to head (b4001c3).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
master/internal/trial.go	55.55%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10207      +/-   ##
==========================================
- Coverage   54.55%   53.88%   -0.67%     
==========================================
  Files        1258     1257       -1     
  Lines      156530   156507      -23     
  Branches     3652     3652              
==========================================
- Hits        85393    84337    -1056     
- Misses      71004    72037    +1033     
  Partials      133      133              

Flag	Coverage Δ
backend	46.06% <55.55%> (-0.04%)	⬇️
harness	67.37% <ø> (-3.78%)	⬇️
web	54.75% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
master/internal/trial.go	42.40% <55.55%> (-0.25%)	⬇️

... and 28 files with indirect coverage changes

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