[PATCH] small patch for sym53c8xx_2

I thought we had an agreement for a long time already that the use of
dma64_addr_t in the sym53c8xx_2 driver was wrong, but it's still
there.

drivers/scsi/sym53c8xx_2/sym_glue.c

@@ -295,12 +295,8 @@ struct host_data {
 #ifndef SYM_LINUX_DYNAMIC_DMA_MAPPING
 typedef u_long		bus_addr_t;
 #else
-#if	SYM_CONF_DMA_ADDRESSING_MODE > 0
-typedef dma64_addr_t	bus_addr_t;
-#else
 typedef dma_addr_t	bus_addr_t;
 #endif
-#endif
 
 /*
  *  Used by the eh thread to wait for command completion.