Removes space adaptation (shiptest-ss13#2726)

Nobody tell me power creep isn't real and tangible

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## About The Pull Request
Removes space adaptation
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## Changelog

:cl:
del: Removes space adaptation.
/:cl:

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code/__DEFINES/DNA.dm

@@ -5,7 +5,6 @@
 //Defines copying names of mutations in all cases, make sure to change this if you change mutation's type
 #define HULK /datum/mutation/human/hulk
 #define XRAY /datum/mutation/human/thermal/x_ray
-#define SPACEMUT /datum/mutation/human/space_adaptation
 #define TK /datum/mutation/human/telekinesis
 #define NERVOUS /datum/mutation/human/nervousness
 #define EPILEPSY /datum/mutation/human/epilepsy

code/game/objects/items/dna_injector.dm

@@ -176,16 +176,6 @@
 	desc = "Fixes that speaking impairment."
 	remove_mutations = list(NERVOUS)
 
-/obj/item/dnainjector/antifire
-	name = "\improper DNA injector (Anti-Fire)"
-	desc = "Cures fire."
-	remove_mutations = list(SPACEMUT)
-
-/obj/item/dnainjector/firemut
-	name = "\improper DNA injector (Fire)"
-	desc = "Gives you fire."
-	add_mutations = list(SPACEMUT)
-
 /obj/item/dnainjector/blindmut
 	name = "\improper DNA injector (Blind)"
 	desc = "Makes you not see anything."

code/game/objects/structures/icemoon/cave_entrance.dm

@@ -1043,7 +1043,6 @@ GLOBAL_LIST_INIT(ore_probability, list(
 				new /obj/item/dnainjector/hulkmut(loc)
 				new /mob/living/simple_animal/hostile/gorilla(loc)
 			if(prob(35))
-				new /obj/item/dnainjector/firemut(loc)
 				new /mob/living/simple_animal/hostile/gorilla(loc)
 			if(prob(35))
 				new /obj/item/dnainjector/gigantism(loc)

shiptest.dme

@@ -712,7 +712,6 @@
 #include "code\datums\mutations\hulk.dm"
 #include "code\datums\mutations\radioactive.dm"
 #include "code\datums\mutations\sight.dm"
-#include "code\datums\mutations\space_adaptation.dm"
 #include "code\datums\mutations\speech.dm"
 #include "code\datums\mutations\telekinesis.dm"
 #include "code\datums\mutations\touch.dm"