usb: dwc3: remove repeated setting of current_dr_role

dwc3_set_prtcap() already sets current_dr_role as
DWC3_GCTL_PRTCAP_OTG, so remove the repeated one.

Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20210506072608.32320-1-chunfeng.yun@mediatek.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>