Plenty of concentration camps didn't have gas chambers.

The tools of killing were bullets, disease, and starvation.

The Nazis ran out of many things, towards the end of the war. But never bullets.

Edit: I have no idea why people are doing the drive by downvote thing here? Maybe you think I'm denying that gas chambers were real?

No. I'm saying there were concentration camps without them, where prisoners were mass-murdered as I described above. That statement is not controversial.

I don't think destroying the gas chambers would have been enough to stop Auschwitz.