net: dsa: qca8k: Remove redundant parentheses

Fix warning reported by checkpatch.

Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/qca8k.c

@@ -468,7 +468,7 @@ qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable)
 	u32 mask = QCA8K_PORT_STATUS_TXMAC | QCA8K_PORT_STATUS_RXMAC;
 
 	/* Port 0 and 6 have no internal PHY */
-	if ((port > 0) && (port < 6))
+	if (port > 0 && port < 6)
 		mask |= QCA8K_PORT_STATUS_LINK_AUTO;
 
 	if (enable)