According to the docs, to remove an item you call removeValue() on the reference .
Read moreHow do I delete files from Firebase storage?
To delete a file, first create a reference to that file. Then call the delete() method on that reference , which returns a Promise that resolves, or an error if the Promise rejects.
Read moreHow do I delete a document from firestore?
The following examples demonstrate how to delete documents, fields, and collections.
Read moreHow do I delete data from Firebase?
The simplest way for deleting data is to call removeValue() on a reference to the location of that data . We can also delete data by specifying null as the value for another write operation such as setValue() or updateChildren().
Read moreHow do I delete a firestore document on flutter?
Flutter – remove a firebase document onTap() When the user long press a ListTile (an item on the list), I show a BottomSheet. When the user clicks the Delete button on the BottomSheet , the document should be removed.
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