cciss: use consistent variable names

cciss: use consistent variable names
"h", for the hba structure and "c" for the command structures.
and get rid of trivial CCISS_LOCK macro.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

drivers/block/cciss.h

@@ -419,6 +419,4 @@ struct board_type {
 	int nr_cmds; /* Max cmds this kind of ctlr can handle. */
 };
 
-#define CCISS_LOCK(i)	(&hba[i]->lock)
-
 #endif /* CCISS_H */