refactor(velodyne): remove unused private variables from HW monitor

[interimadd]

PR Type

• Refactor

Related Links

#279

Description

Some private variables in the Velodyne hardware monitor class were not being used.
Therefore, these variables have been removed.

Review Procedure

Please verify that the nebula_ros package compiles successfully using the following command:

colcon build --packages-up-to nebula_ros

Remarks

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• Assign PR to reviewer

Checklist for the PR Reviewer

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• Commits are properly organized and messages are according to the guideline
• (Optional) Unit tests have been written for new behavior
• PR title describes the changes

Post-Review Checklist for the PR Author

PR Author should check the checkboxes below before merging.

• All open points are addressed and tracked via issues or tickets

CI Checks

• Build and test for PR: Required to pass before the merge.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 26.57%. Comparing base (b38ac0a) to head (4aa3d37).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #282      +/-   ##
==========================================
- Coverage   29.38%   26.57%   -2.81%     
==========================================
  Files         112      112              
  Lines        9699     9490     -209     
  Branches     3249     2121    -1128     
==========================================
- Hits         2850     2522     -328     
- Misses       6325     6544     +219     
+ Partials      524      424     -100     

Flag	Coverage Δ
differential	26.57% <ø> (?)
total	?

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

Components	Coverage Δ
Common	18.37% <ø> (-31.87%)	⬇️
Hesai	29.69% <ø> (-0.72%)	⬇️
Velodyne	37.76% <ø> (+0.10%)	⬆️
Continental	25.09% <ø> (+0.02%)	⬆️
Robosense	0.00% <ø> (ø)