Removes a key/value pair from a Tree.
If the Tree was created using Tree.full, the key and value are freed using the supplied destroy functions, otherwise you have to make sure that any dynamically allocated values are freed yourself. If the key does not exist in the Tree, the function does nothing.
| this |
a Tree |
| key |
the key to remove |
|
true if the key was found (prior to 2.8, this function returned nothing) |