After uploading files to Cloud Storage, you can also delete them.
Delete a File
To delete a file, first create a reference
to that file. Then call the delete() method on that reference.
// Create a reference to the file to delete
final desertRef = storageRef.child("images/desert.jpg");
// Delete the file
There are a number of reasons why errors may occur on file deletes,
including the file not existing, or the user not having permission
to delete the desired file. More information on errors can be found in the
Handle Errors section of the docs.