Signals to the
Binding that it will not be used anymore and any
references can be removed. A call of this method usually results in the
binding stopping to observe its dependencies by unregistering its
listener(s). The implementation is optional.
All bindings in our implementation use instances of
javafx.beans.WeakInvalidationListener, which means usually
a binding does not need to be disposed. But if you plan to use your
application in environments that do not support
you have to dispose unused
Bindings to avoid memory leaks.