[PATCH] sym53c500_cs: remove bogus call fo free_dma()

What DMA for 16bit pcmcia card, anyway?  We never do request_dma()
there and ->dma_channel never changes since initialization to -1.
IOW, that call is dead code.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>