usb: dwc2: fix duplicate argument warning

Fix a duplicate argument warning reported by 0-DAY kernel test
infrastructure in the following patch:
77dbf713 usb: dwc2: host: add disconnect interrupt to host only interrupts
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/dwc2/core.c

@@ -863,8 +863,7 @@ void dwc2_enable_host_interrupts(struct dwc2_hsotg *hsotg)
 
 	/* Enable host mode interrupts without disturbing common interrupts */
 	intmsk = dwc2_readl(hsotg->regs + GINTMSK);
-	intmsk |= GINTSTS_DISCONNINT | GINTSTS_PRTINT | GINTSTS_HCHINT |
-			GINTSTS_DISCONNINT;
+	intmsk |= GINTSTS_DISCONNINT | GINTSTS_PRTINT | GINTSTS_HCHINT;
 	dwc2_writel(intmsk, hsotg->regs + GINTMSK);
 }