remove deprec rails-ujs

[yshmarov]

# old
- link_to "Delete", product_path(product), method: :delete
# new
+ link_to "Delete", product_path(product), turbo_method: :delete 
# best
button_to "Delete", product_path(product), method: :delete 

[jagthedrummer]

@yshmarov I think that removing this line would cause the Rails.start() call below (on line 12/11) to fail. Do you need to also remove that?

[yshmarov]

If we are removing rails/ujs from package.json, we won't have a place to "import Rails" from

I can have a look at how/whether Rails.start() needs to be updated

[jagthedrummer]

Also this has broken a lot of tests.