Revert "usb: phy: fsl-usb: Fix use-after-free in delayed work during device removal"

This reverts commit 4476c73.

The reverted commit uses disable_delayed_work_sync, which was introduced
by commit 86898fa ("workqueue: Implement disable/enable for
(delayed) work items") in v6.10. The function is therefore unavailable
in 6.1.y, causing configurations that enable CONFIG_FSL_USB2_OTG to fail
to build.

The upstream commit is unaffected; only its incompatible stable backport
is being reverted.

Fixes: 4476c73 ("usb: phy: fsl-usb: Fix use-after-free in delayed work during device removal")
Link: https://lore.kernel.org/stable/20260827154302.706689-1-ralf@mandelbit.com/
Signed-off-by: Ralf Lici <ralf@mandelbit.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: ralflici

drivers/usb/phy/phy-fsl-usb.c

@@ -987,7 +987,6 @@ static int fsl_otg_remove(struct platform_device *pdev)
 {
 	struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
 
-	disable_delayed_work_sync(&fsl_otg_dev->otg_event);
 	usb_remove_phy(&fsl_otg_dev->phy);
 	free_irq(fsl_otg_dev->irq, fsl_otg_dev);