usb: musb: am35x: 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/am35x.c

@@ -121,7 +121,6 @@ static void am35x_musb_disable(struct musb *musb)
 	musb_writel(reg_base, CORE_INTR_MASK_CLEAR_REG, AM35X_INTR_USB_MASK);
 	musb_writel(reg_base, EP_INTR_MASK_CLEAR_REG,
 			 AM35X_TX_INTR_MASK | AM35X_RX_INTR_MASK);
-	musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
 	musb_writel(reg_base, USB_END_OF_INTR_REG, 0);
 }