Deletes a subkey of the current key. This function
will delete all values in the subkey and the subkey itself. A
key cannot be deleted if it contains any subkeys.
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.