A few members in ion_buffer struct are unused after features like page faulting, ion_handle and ion_client were removed. Remove these members and the leftover references to them. Signed-off-by: Archit Taneja <architt@codeaurora.org> Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>