RDMA/qib: Remove not-used variable freeze_cnt

The variable freeze_cnt being incremented but it is never referenced,
it is redundant and can be removed.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20221021173504.27546-1-colin.i.king@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

drivers/infiniband/hw/qib/qib_iba6120.c

@@ -799,12 +799,9 @@ static void qib_handle_6120_hwerrors(struct qib_devdata *dd, char *msg,
 			hwerrs &= ~TXE_PIO_PARITY;
 		}
 
-		if (!hwerrs) {
-			static u32 freeze_cnt;
-
-			freeze_cnt++;
+		if (!hwerrs)
 			qib_6120_clear_freeze(dd);
-		} else
+		else
 			isfatal = 1;
 	}