how to remove an item from a shipping profile and have it out of a profile

[JanetsCrafts]

I have an item I want to remove from its assigned shipping profile.  I want it to not have any profile.  Once I do that, I want to remove the profile completely, as I don't need it.  How can I do these 2 things.

[DesertChains]

Just delete the shipping profile.

[CraftyCornishMaids]

listings have to have shipping profiles, for a "ships from" location, a processing time, and a shipper (some people can still choose other for this, and put in their own delivery days) - without that, it doesn't work for star seller, or if a case is opened.
Create the shipping profile you want to use for the item, and link the new one

then you can delete the old shipping profile