char: ipmi: remove unneeded break

A break is not needed if it is preceded by a return
Signed-off-by: Tom Rix <trix@redhat.com>
Message-Id: <20201019194805.14996-1-trix@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>

drivers/char/ipmi/ipmi_devintf.c

@@ -490,7 +490,6 @@ static long ipmi_ioctl(struct file   *file,
 		}
 
 		return ipmi_set_my_address(priv->user, val.channel, val.value);
-		break;
 	}
 
 	case IPMICTL_GET_MY_CHANNEL_ADDRESS_CMD: