feat(behavior_path_planner): remove calcTotalLaneChangeLength function

[purewater0901]

Description

Remove calcTotalLaneChangeLength function to dynamically calculate total lane change length.

🤖 Generated by Copilot at 19f34e4

Refactored the lane change and avoidance logic in the behavior_path_planner package to use a new utility function calcMinimumLaneChangeLength that considers the lateral intervals to the preferred lane. Removed the unused function calcTotalLaneChangeLength from the utils.hpp and utils.cpp files.

Tests performed

Scenario Test Result 1323/1330
TIER4 Internal Link

Effects on system behavior

Total lane change length will be computed dynamically.

Pre-review checklist for the PR author

The PR author must check the checkboxes below when creating the PR.

• I've confirmed the contribution guidelines.
• The PR follows the pull request guidelines.

In-review checklist for the PR reviewers

The PR reviewers must check the checkboxes below before approval.

• The PR follows the pull request guidelines.

Post-review checklist for the PR author

The PR author must check the checkboxes below before merging.

• There are no open discussions or they are tracked via tickets.

After all checkboxes are checked, anyone who has write access can merge the PR.

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (2d7470d) 13.81% compared to head (19f34e4) 13.81%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3483   +/-   ##
=======================================
  Coverage   13.81%   13.81%           
=======================================
  Files        1391     1391           
  Lines       97390    97385    -5     
  Branches    28802    28818   +16     
=======================================
  Hits        13451    13451           
+ Misses      69481    69476    -5     
  Partials    14458    14458           

Flag	Coverage Δ		*Carryforward flag
differential	12.62% <0.00%> (?)
total	13.81% <ø> (+<0.01%)	⬆️	Carriedforward from 2d7470d

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
...th_planner/scene_module/lane_change/base_class.hpp	10.52% <0.00%> (-0.29%)	⬇️
...nner/include/behavior_path_planner/utils/utils.hpp	100.00% <ø> (ø)
...lanner/src/scene_module/avoidance_by_lc/module.cpp	0.00% <0.00%> (ø)
...planner/src/scene_module/lane_change/bt_normal.cpp	14.63% <0.00%> (ø)
...ane_change/external_request_lane_change_module.cpp	12.70% <0.00%> (ø)
...th_planner/src/scene_module/lane_change/normal.cpp	5.79% <0.00%> (ø)
...avior_path_planner/src/utils/lane_change/utils.cpp	0.00% <0.00%> (ø)
planning/behavior_path_planner/src/utils/utils.cpp	19.07% <ø> (+0.15%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.