Fix memory leak in EmojiPaletteView

        @Override

        public void destroyItem(final ViewGroup container, final int position,

                final Object object) {

            ScrollKeyboardView keyboardView = mActiveKeyboardViews.get(position);

            final ScrollKeyboardView keyboardView = mActiveKeyboardViews.get(position);

            if (keyboardView != null) {

                keyboardView.deallocateMemory();

                mActiveKeyboardViews.remove(position);

            }

            container.removeView(keyboardView);

            keyboardView = null;

            if (object instanceof View) {

                container.removeView((View)object);

            } else {

                Log.w(TAG, "Warning!!! Emoji palette may be leaking. " + object);

            }

        }

    }