Fix duplication

Author: lixmal

client/firewall/uspfilter/tracer.go

@@ -487,12 +487,7 @@ func (m *Manager) traceInboundPortDNAT(trace *PacketTrace, packetData []byte, d
 	translated := m.translateInboundPortDNAT(packetData, d)
 	if translated {
 		ipHeaderLen := int((packetData[0] & 0x0F) * 4)
-		var translatedPort uint16
-		if protocol == layers.LayerTypeTCP {
-			translatedPort = uint16(packetData[ipHeaderLen+2])<<8 | uint16(packetData[ipHeaderLen+3])
-		} else {
-			translatedPort = uint16(packetData[ipHeaderLen+2])<<8 | uint16(packetData[ipHeaderLen+3])
-		}
+		translatedPort := uint16(packetData[ipHeaderLen+2])<<8 | uint16(packetData[ipHeaderLen+3])
 
 		protoStr := "TCP"
 		if protocol == layers.LayerTypeUDP {
@@ -595,12 +590,7 @@ func (m *Manager) traceOutboundPortReverse(trace *PacketTrace, packetData []byte
 	translated := m.translateOutboundPortReverse(packetData, d)
 	if translated {
 		ipHeaderLen := int((packetData[0] & 0x0F) * 4)
-		var translatedPort uint16
-		if protocol == layers.LayerTypeTCP {
-			translatedPort = uint16(packetData[ipHeaderLen])<<8 | uint16(packetData[ipHeaderLen+1])
-		} else {
-			translatedPort = uint16(packetData[ipHeaderLen])<<8 | uint16(packetData[ipHeaderLen+1])
-		}
+		translatedPort := uint16(packetData[ipHeaderLen])<<8 | uint16(packetData[ipHeaderLen+1])
 
 		protoStr := "TCP"
 		if protocol == layers.LayerTypeUDP {