usb: musb: dsps: remove redundant code

The session is cleared in the core whenever musb_platform_disable() is
called, so clearing it in the glue driver *_musb_disable() is redundant.
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/musb/musb_dsps.c

@@ -186,7 +186,6 @@ static void dsps_musb_disable(struct musb *musb)
 	musb_writel(reg_base, wrp->epintr_clear,
 			 wrp->txep_bitmap | wrp->rxep_bitmap);
 	del_timer_sync(&glue->timer);
-	musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
 }
 
 /* Caller must take musb->lock */