I went through this the last time I built a server room.
You can’t ditch the sprinklers. They’re required by code. What you can do is add a gas based system like halon (there are newer systems now) that is designed to extinguish any fire before the sprinklers activate.
At least they’re required by code where I live...
And a little water would fry electronics or set up an electrocution hazard if there is a ground fault protection system.
I could dunk my circuits under water, freeze them, thaw them out, lay them in the desert for 30 years and they will still work.
The problem with sprinklers is that they almost always ALL turn on, rather than be selective by area. Thus, the fire outside the “computer room” also releases water systems IN the room. Thus, advanced suppression may not work. You need to check the code to deactivate that room of sprinklers while maintaining regulations for that room. Simply call an IT manager of another company and see if they will be forthcoming about how they did it.