fix(obstacle_cruise_planner)!: remove stop reason

[satoshi-ota]

Description

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

Related links

Parent Issue:

• Link

How was this PR tested?

Please confirm that this module doesn't output stop reason.

/planning/scenario_planning/status/stop_reasons

• [x] PASS TIER IV INTERNAL SCENARIOS

Notes for reviewers

None.

Interface changes

After this PR, this module only outputs velocity factors.

Effects on system behavior

None.

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 29.16%. Comparing base (81dab81) to head (8bde1dd). Report is 8 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #9464 +/- ## ========================================== - Coverage 29.17% 29.16% -0.01% ========================================== Files 1438 1439 +1 Lines 108434 108429 -5 Branches 41511 41499 -12 ========================================== - Hits 31631 31624 -7 - Misses 73748 73752 +4 + Partials 3055 3053 -2 ``` | [Flag](https://app.codecov.io/gh/autowarefoundation/autoware.universe/pull/9464/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) | Coverage Δ | | *Carryforward flag | |---|---|---|---| | [differential](https://app.codecov.io/gh/autowarefoundation/autoware.universe/pull/9464/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) | `12.95% <ø> (?)` | | | | [total](https://app.codecov.io/gh/autowarefoundation/autoware.universe/pull/9464/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) | `29.16% <ø> (-0.01%)` | :arrow_down: | Carriedforward from [81dab81](https://app.codecov.io/gh/autowarefoundation/autoware.universe/commit/81dab81cc764ce0a232f2cab643553faa8195527?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) | *This pull request uses carry forward flags. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=autowarefoundation) to find out more.

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