remove EVA counter. we relly need a rewrite of the habitat code.

Fixes #348
Fixes #349
Fixes #350

src/Kerbalism/UI/Planner/Planner.cs

@@ -544,8 +544,6 @@ private static void AddSubPanelHabitat(Panel p)
 			p.AddContent("scrubbing", waste_status, waste_tooltip);
 			p.AddContent("humidity", moist_status, moist_tooltip);
 			p.AddContent("pressurization", atmo_status, atmo_tooltip);
-			p.AddContent("EVA's available", env_analyzer.breathable ? "infinite" : Lib.HumanReadableInteger(vessel_analyzer.evas),
-				env_analyzer.breathable ? "breathable atmosphere" : "approx (derived from stored N2)");
 		}
 		#endregion
 

src/Kerbalism/UI/Planner/VesselAnalyzer.cs

@@ -79,9 +79,6 @@ void Analyze_habitat(List<Part> parts, ResourceSimulator sim, EnvironmentAnalyze
 			// determine if the vessel has pressure control capabilities
 			pressurized = sim.Resource("Atmosphere").produced > 0.0 || env.breathable;
 
-			// determine number of EVA's using available Nitrogen
-			evas = (uint)(Math.Max(0, sim.Resource("Nitrogen").amount - 330) / PreferencesLifeSupport.Instance.evaAtmoLoss);
-
 			// determine if the vessel has scrubbing capabilities
 			scrubbed = sim.Resource("WasteAtmosphere").consumed > 0.0 || env.breathable;
 
@@ -257,7 +254,6 @@ void Analyze_qol(List<Part> parts, ResourceSimulator sim, EnvironmentAnalyzer en
 		public double volume;                               // total volume in m^3
 		public double surface;                              // total surface in m^2
 		public bool pressurized;                            // true if the vessel has pressure control capabilities
-		public uint evas = 0;                               // number of EVA's using available Nitrogen
 		public bool scrubbed;                               // true if the vessel has co2 scrubbing capabilities
 		public bool humid;                                  // true if the vessel has co2 scrubbing capabilities