s390/cio: remove unused channel_subsystem_reinit

Added with commit 77e844b9 ("s390/hibernate: add early resume
function") unused since commit 39421627 ("s390: remove broken
hibernate / power management support").
Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

arch/s390/include/asm/cio.h

@@ -356,7 +356,6 @@ static inline u8 pathmask_to_pos(u8 mask)
 	return 8 - ffs(mask);
 }
 
-void channel_subsystem_reinit(void);
 extern void css_schedule_reprobe(void);
 
 extern void *cio_dma_zalloc(size_t size);

drivers/s390/cio/css.c

@@ -1350,20 +1350,6 @@ static int __init channel_subsystem_init_sync(void)
 }
 subsys_initcall_sync(channel_subsystem_init_sync);
 
-void channel_subsystem_reinit(void)
-{
-	struct channel_path *chp;
-	struct chp_id chpid;
-
-	chsc_enable_facility(CHSC_SDA_OC_MSS);
-	chp_id_for_each(&chpid) {
-		chp = chpid_to_chp(chpid);
-		if (chp)
-			chp_update_desc(chp);
-	}
-	cmf_reactivate();
-}
-
 #ifdef CONFIG_PROC_FS
 static ssize_t cio_settle_write(struct file *file, const char __user *buf,
 				size_t count, loff_t *ppos)