Remove unused function and fix typo from OverlayProperties.java

     * and {@link HardwareBuffer.Format} is supported on the device.

     *

     * @return True if the device can support efficiently compositing the content described by the

     *         dataspace and format. False if GPOU composition fallback is otherwise required.

     *         dataspace and format. False if GPU composition fallback is otherwise required.

     */

    @FlaggedApi(Flags.FLAG_OVERLAYPROPERTIES_CLASS_API)

    public boolean isCombinationSupported(@DataSpace.ColorDataSpace int dataspace,

    private static native long nGetDestructor();

    private static native long nCreateDefault();

    private static native boolean nSupportFp16ForHdr(long nativeObject);

    private static native boolean nSupportMixedColorSpaces(long nativeObject);

    private static native boolean nIsCombinationSupported(

            long nativeObject, int dataspace, int format);