Remove 6.0 PreviousVersion Attributes

[BHoMBot]

Remove 6.0 PreviousVersion Attributes and Versioning JSON files

[bhombot-ci]

@BHoMBot just to let you know, I have provided a check-versioning result to this Pull Request as it was detected to be linked to other Pull Requests in a series. The comment which triggered this check came from @FraserGreenroyd on BHoM

[FraserGreenroyd]

@BHoMBot this is a DevOps instruction. I am requesting neutral checks on: code-compliance, core, dataset-compliance, documentation-compliance, null-handling, project-compliance, serialisation, unit-tests

[bhombot-ci]

@FraserGreenroyd I have provided neutral checks to the checks requested. These checks will need to be run properly to obtain full results.

[FraserGreenroyd]

@BHoMBot check copyright-compliance

[bhombot-ci]

@FraserGreenroyd to confirm, the following actions are now queued:

• check copyright-compliance

[bhombot-ci]

@BHoMBot just to let you know, I have provided a check-installer result to this Pull Request as it was detected to be linked to other Pull Requests in a series. The comment which triggered this check came from @FraserGreenroyd on BHoM

[FraserGreenroyd]

Approving based on bot checks and DevOps workflows

[bhombot-ci]

@BHoMBot just to let you know, I have provided a check-ready-to-merge result to this Pull Request as it was detected to be linked to other Pull Requests in a series. The comment which triggered this check came from @FraserGreenroyd on BHoM