feat(traffic_light_ssd_fine_detector): remove package (#6360)

* feat(traffic_light_ssd_fine_detector): remove package

Signed-off-by: kminoda <koji.minoda@tier4.jp>

* fix readme

Signed-off-by: kminoda <koji.minoda@tier4.jp>

* style(pre-commit): autofix

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Signed-off-by: kminoda <koji.minoda@tier4.jp>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: kminoda