usb: musb: omap: remove the check before calling otg_set_vbus

No functional change. otg_set_vbus is already protected so removed the
check before calling otg_set_vbus.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
1 file changed