scsi: aic7xxx: Remove unused variables 'wait' and 'paused'

It looks like they have never actually been used.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/aic7xxx/aic79xx_osm.c: In function ‘ahd_linux_dev_reset’:
 drivers/scsi/aic7xxx/aic79xx_osm.c:782:9: warning: variable ‘wait’ set but not used [-Wunused-but-set-variable]
 drivers/scsi/aic7xxx/aic79xx_osm.c:781:9: warning: variable ‘paused’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20200713080001.128044-23-lee.jones@linaro.org
Cc: Hannes Reinecke <hare@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/aic7xxx/aic79xx_osm.c

@@ -775,16 +775,13 @@ ahd_linux_dev_reset(struct scsi_cmnd *cmd)
 	struct scb *reset_scb;
 	u_int  cdb_byte;
 	int    retval = SUCCESS;
-	int    paused;
-	int    wait;
 	struct	ahd_initiator_tinfo *tinfo;
 	struct	ahd_tmode_tstate *tstate;
 	unsigned long flags;
 	DECLARE_COMPLETION_ONSTACK(done);
 
 	reset_scb = NULL;
-	paused = FALSE;
-	wait = FALSE;
+
 	ahd = *(struct ahd_softc **)cmd->device->host->hostdata;
 
 	scmd_printk(KERN_INFO, cmd,