Removed references to CPU and GPU comparisons

[adaudon]

Partially fixes mx-bluesky#449

Instructions to reviewer on how to test:

1. Confirm tests pass

Checks for reviewer

• Would the PR title make sense to a scientist on a set of release notes
• If a new device has been added does it follow the standards
• If changing the API for a pre-existing device, ensure that any beamlines using this device have updated their Bluesky plans accordingly
• Have the connection tests for the relevant beamline(s) been run via dodal connect ${BEAMLINE}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.00%. Comparing base (bd61397) to head (3746b48).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1249      +/-   ##
==========================================
- Coverage   98.06%   98.00%   -0.06%     
==========================================
  Files         203      203              
  Lines        7788     7765      -23     
==========================================
- Hits         7637     7610      -27     
- Misses        151      155       +4     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

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

[DominicOram]

Great, thank you! I think we can also remove a bit more:

• get_dict_differences is no longer called
• This means that deepdiff is no longer needed in dodal so we can remove it from pyproject.toml
• However, we do use it in mx-bluesky, where we expect it to have come in from dodal so we will need to add it in to the pyproject.toml of mx-bluesky