There is no place to put the dampering valves on the new struts. So you just leave them plugged in and tie them off in an out of the way place. The electronics that come with the new passive struts do not work, so you can throw them away if you want to. Passive shock and strut companies have not yet found the right electronics to give out for the N* RSS system (other than the CVRSS system which was available from 97 up). This is because the RSS module measures the inductive frequency of the valves rather than the resistance that the flow of electrons encounters.
The right electronic would look like a coil of wire. It is called an inductive coil because it induces (or creates) an electromagnetic feild. One of the properties of inductive coils is that it will store a charge and dump it like a capacitor, but unlike a capacitor it doesn't dump the whole charge. This dumping and refilling process creates a frequency called an inductive frequency. The RSS module measures this frequency to tell if the valve is working properly. The valve works by having the electromagnetic feild of the inductive coil pull open a springloaded valve, then when less wattage is put through the wire the magnetic feild becomes smaller and the spring closes the valve.
If you are changing the front struts, make sure you get a front end alignment afterwards.
