Method remove

Fleece/Mutable/MutableDict.hh:46–46

        void set(slice key, T value)                        {heapDict()->set(key, value);}

        void remove(slice key)                              {heapDict()->remove(key);}
        void removeAll()                                    {heapDict()->removeAll();}

        /** Promotes an Array value to a MutableArray (in place) and returns it.