Revert "Update auxmos to 2.0.0" (#15859)

code/modules/atmospherics/gasmixtures/gas_mixture.dm

@@ -280,11 +280,7 @@ we use a hook instead
 	parse_gas_string(model.initial_gas_mix)
 	return 1
 
-/datum/gas_mixture/proc/__auxtools_parse_gas_string(gas_string)
-
 /datum/gas_mixture/parse_gas_string(gas_string)
-	__auxtools_parse_gas_string(gas_string)
-	/*
 	gas_string = SSair.preprocess_gas_string(gas_string)
 
 	var/list/gas = params2list(gas_string)
@@ -298,7 +294,6 @@ we use a hook instead
 	for(var/id in gas)
 		set_moles(id, text2num(gas[id]))
 	archive()
-	*/
 	return 1
 /*
 /datum/gas_mixture/react(datum/holder)

code/modules/atmospherics/gasmixtures/reactions.dm

@@ -69,8 +69,6 @@
 
 // no test cause it's entirely based on location
 
-GLOBAL_VAR_INIT(condensation_priority, 0)
-
 /datum/gas_reaction/condensation
 	priority = 0
 	name = "Condensation"
@@ -89,8 +87,6 @@ GLOBAL_VAR_INIT(condensation_priority, 0)
 	name = "[R.name] condensation"
 	id = "[R.type] condensation"
 	condensing_reagent = GLOB.chemical_reagents_list[R.type]
-	GLOB.condensation_priority += 0.000000000001
-	priority = GLOB.condensation_priority
 	exclude = FALSE
 
 /datum/gas_reaction/condensation/react(datum/gas_mixture/air, datum/holder)