First off, don’t do it. EGR helps significantly with cruising highway fuel economy, and costs absolutely nothing in terms of power or performance, and if the engine is running properly, then the exhaust gasses being recirculated do not cause any harm. Given that you have a 3.8NA, it will never be a powerhouse, but actually does get decent highway fuel mileage, so there is no reason to sacrifice the one thing it is good at!
Now that we have said that, if you insist on deleting it, the OBD1 computer knows the resistance of the EGR vacuum solenoid, so that needs to stay, and there may be an EGR valve position sensor, so you need to keep the valve there and working. However the OBD1 cars don’t have a DPFE sensor, so it can’t sense whether the exhaust gasses are actually flowing, so if you insist on disabling it, the simplest and cheapest way is to just put a penny between the EGR valve and the intake manifold to block the exhaust gas flow. Just make sure the gasket is on the intake side to prevent a vacuum leak. The other advantage to doing it that way is that when you realize it was a mistake, it is just as easy to undo it.