Cannot uninstall due to inability to remove file.feeds_item field

Just ran into this situation where I get this message: "The Feed field type is used in the following fields: file.feeds_item, redirect.feeds_item" when in the uninstall extensions section.

Tried the steps stated at #7 but with no success.

@jucedogi
A workaround that you can try in your case:

1. Go to the feed type creation page.
2. Fill in required fields and select the File processor.
3. Click "Save and add mappings".
4. Remove the feed type.
5. Do likewise for the Redirect processor.

Upon deleting a feed type, the feeds item field gets deleted for the entity type that matches with the current selected processor (if it is the only feed type that uses that processor).

So I expect that this workaround would delete the remaining two feeds item field that you still have.