staging: sm750fb: lynxfb_pci_remove: remove unused variable

The par variable in lynxfb_pci_remove is only assigned a value and never
used afterwards. Remove it.

Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>