library/src/main/java/de/mrapp/android/view/Chip.java
public final void removeCloseListener(@NonNull final CloseListener listener) {
        Condition.INSTANCE.ensureNotNull(listener, "The listener may not be null");
        listeners.remove(listener);
    }
public final void removeCloseListener(@NonNull final CloseListener listener) {
        Condition.INSTANCE.ensureNotNull(listener, "The listener may not be null");
        listeners.remove(listener);
    }
Removes a specific listener, which should not be notified, when the chip has been closed,
anymore.

@param listener
The listener, which should be removed, as an instance of the type {@link
CloseListener}. The listener may not be null