This patch deletes all references to 'flipbuf'.Memory is allocated and
freed but never used anywhere in the driver.Also deleted an ununsed
Macro defined in the header file.
Signed-off-by: Gujulan Elango Hari Prasath <hgujulan@visteon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>