chore: Remove unnecessary JS file

[steverydz]

Done

Removes the scroll-to file as it can be achieved with CSS and therefore is less error-prone. The JS also isn't really testable so this will improve our code coverage score on the TiCS dashboard, albeit marginly.

How to QA

• Has to run locally because demo isn't working
• Go to http://localhost:8004/install/steve-test-snap/arch
• Click on "Install"
• Check that the page scrolls smoothly to the linked section, rather than jumps

Testing

• This PR has tests
• No testing required (explain why): Removing code

Issue / Card

Fixes https://warthogs.atlassian.net/browse/WD-21631
Fixes https://warthogs.atlassian.net/browse/WD-21686

[webteam-app]

Demo

Jenkins

demos.haus

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.58%. Comparing base (b8b6b55) to head (907ce74).
Report is 314 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #5112       +/-   ##
===========================================
- Coverage   66.80%   53.58%   -13.22%     
===========================================
  Files         113      198       +85     
  Lines        3714     4604      +890     
  Branches      965      676      -289     
===========================================
- Hits         2481     2467       -14     
- Misses       1098     1959      +861     
- Partials      135      178       +43     

see 218 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
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[abbiesims]

LGTM 👍