Water recipe now actually produces water

Fixes #2255
RIP mixing HO2 resulting in nothing.

Unrelated to this pull, but who the hell at some point thought making cyanide a chem recipe, and a piss easy one to make at that, was a good idea?
```
 		//cyanide
 		//	name = "Cyanide"
 		//	id = "cyanide"
 		//	result = "cyanide"
 		//	required_reagents = list("hydrogen" = 1, "carbon" = 1, "nitrogen" = 1)
 		//	result_amount = 1
```
Uh. Why HO2 still?