Revert "epic Respiration Rework" (#6524)

Resources/Prototypes/Atmospherics/gases.yml

@@ -5,7 +5,6 @@
   heatCapacityRatio: 1.4
   molarMass: 32
   color: 2887E8
-  reagent: Oxygen
 
 - type: gas
   id: 1
@@ -14,7 +13,6 @@
   heatCapacityRatio: 1.4
   molarMass: 28
   color: DA1010
-  reagent: Nitrogen
 
 - type: gas
   id: 2
@@ -23,7 +21,6 @@
   heatCapacityRatio: 1.3
   molarMass: 44
   color: 4e4e4e
-  reagent: CarbonDioxide
 
 - type: gas
   id: 3
@@ -34,7 +31,6 @@
   gasOverlaySprite: /Textures/Effects/atmospherics.rsi
   gasOverlayState: plasma
   color: FF3300
-  reagent: Plasma
 
 - type: gas
   id: 4
@@ -45,7 +41,6 @@
   gasOverlaySprite: /Textures/Effects/atmospherics.rsi
   gasOverlayState: tritium
   color: 13FF4B
-  reagent: Tritium
 
 - type: gas
   id: 5
@@ -56,4 +51,3 @@
   gasOverlaySprite: /Textures/Effects/atmospherics.rsi
   gasOverlayState: water_vapor
   color: bffffd
-  reagent: Water