Tidy up unused files

[feedmypixel]

Once we have the belts and braces of Visual Regression tests running on the component library there appears to be a lot of files and folders that are not in use inside assets-frontend.
This unused work can then be removed safely, with a level of confidence that it won't cause undesired knock on effects.

• Work through the repository to find any files and folders that are not in use
• Remove any files or folders that are not in use

[rpowis]

Is this not a dupe of #376?

[feedmypixel]

Is this not a dupe of #376?

no this is more a check everything and remove anything that is not being used issue. A tech debt tidy up. Which depending on its size may end up being split up.

[rpowis]

This issue's very vague is all. We already have a deprecated issue label for stuff not covered in #376. Maybe we should link to all those in this issue instead?

[feedmypixel]

This issue's very vague is all.

Good point, I have updated the description

deprecated issue label

In my mind this is associated with deprecated CSS and JavaScript from when the component library work was initially created

#376.

This is hard dependancies and potentially is deprecated itself if we are taking a component by component approach

[gordonmcmullan]

Legacy stuff will be removed as part of the v4 work