clocksource/drivers/sh_cmt: Remove unneeded memset() in sh_cmt_setup()

Memory for cmt struct is allocated by kzalloc() in sh_cmt_setup.

Signed-off-by: Alexey Klimov <[e-mail]>
Signed-off-by: Daniel Lezcano <[e-mail]>

drivers/clocksource/sh_cmt.c

···
 	unsigned int i;
 	int ret;
 
-	memset(cmt, 0, sizeof(*cmt));
 	cmt->pdev = pdev;
 	raw_spin_lock_init(&cmt->lock);