update benchmark for tracking.py

[Naman-Priyadarshi]

• [x] Closes #1508
• [x] I am familiar with the contributing guidelines
• [x] Adds description and name entries in the appropriate "what's new" file in docs/sphinx/source/whatsnew for all changes. Includes link to the GitHub Issue with :issue:`num` or this Pull Request with :pull:`num`. Includes contributor name and/or GitHub username (link with :ghuser:`user`).
• [x] New code is fully documented. Includes numpydoc compliant docstrings, examples, and comments where necessary.
• [x] Pull request is nearly complete and ready for detailed review.
• [x] Maintainer: Appropriate GitHub Labels (including remote-data) and Milestone are assigned to the Pull Request and linked Issue.

Removed time_tracker_singleaxis function from the benchmark file as SingleAxisTracker has been deprecated.

[Naman-Priyadarshi]

sorry for creating another pull request for the same issue, I ran into some technical issue so i've created a new one

[kandersolar]

Merging this now that #1542 is in. Thanks again @Naman-Priyadarshi!