zones: Env: drop unused ZONE{zoneID}_IP

Signed-off-by: Alejandro Mery <amery@jpi.io>

pkg/zones/env.go

@@ -48,11 +48,6 @@ func (m *Env) writeEnvZone(w io.Writer, z *Zone) {
 	gatewayID := getRingZeroGatewayID(z)
 	if gatewayID > 0 {
 		m.writeEnvVar(w, fmt.Sprintf("%v", gatewayID), "ZONE%v_%s", zoneID, "GW")
-
-		// ZONE{zoneID}_IP
-		if ip, ok := RingZeroAddress(zoneID, gatewayID); ok {
-			m.writeEnvVar(w, ip.String(), "ZONE%v_%s", zoneID, "IP")
-		}
 	}
 }