drivers: spi: kbus: remove re-initialization of workqueue in renesas_isr

The init_workqueue_head() call during usage leads to hanging ioctl()
calls in userspace. There is no need to re-init the workqueue, so remove
it.

Signed-off-by: Tobias Biehl <tobias.biehl@wago.com>

drivers/spi/spi-kbus.c

@@ -132,7 +132,6 @@ static irqreturn_t kbus_renesas_isr(int irq, void *dev)
 	if (unlikely(kdrvdata->cmdsel)) {
 		if (kdrvdata->kbus_ign_reset_irq) {
 			kdrvdata->kbus_ign_reset_irq = 0;
-			init_waitqueue_head(&kdrvdata->kbus_irq_wq);
 			// trace for command 0xA3 find in libkbusfwload library
 			trace_pxc_kbus(__func__, "kbus-irq: edge falling after command\
 					SCPU_COMMAND_START_UPDATE [0xa3]: ignore irq");