fix(goal_planner)!: remove stop reason

[satoshi-ota]

Description

Don't use stop reason. This module uses velocity factor instead of it.

Related links

Parent Issue:

• feat(bpp): add velocity interface #9344

How was this PR tested?

Notes for reviewers

None.

Interface changes

None.

Effects on system behavior

None.

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 29.76%. Comparing base (24652f8) to head (a646416).
Report is 66 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9365      +/-   ##
==========================================
- Coverage   29.78%   29.76%   -0.02%     
==========================================
  Files        1338     1343       +5     
  Lines      103302   103364      +62     
  Branches    40240    40241       +1     
==========================================
  Hits        30770    30770              
- Misses      69547    69609      +62     
  Partials     2985     2985              

Flag	Coverage Δ		*Carryforward flag
differential	0.52% <ø> (?)
total	29.78% <ø> (+<0.01%)	⬆️	Carriedforward from 24652f8

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