Ichor double-metabolize fix + Very minor cleanup (#37107)

Not a yaml vacation apparently

Content.Server/Devour/DevourSystem.cs

@@ -29,8 +29,6 @@ public sealed class DevourSystem : SharedDevourSystem
         if (component.FoodPreference == FoodPreference.All ||
             (component.FoodPreference == FoodPreference.Humanoid && HasComp<HumanoidAppearanceComponent>(args.Args.Target)))
         {
-            ichorInjection.ScaleSolution(0.5f);
-
             if (component.ShouldStoreDevoured && args.Args.Target is not null)
             {
                 ContainerSystem.Insert(args.Args.Target.Value, component.Stomach);

Resources/Prototypes/Entities/Mobs/Player/dragon.yml

@@ -141,7 +141,7 @@
     foodPreference: Humanoid
     shouldStoreDevoured: true
     chemical: Ichor
-    healRate: 15.0
+    healRate: 7.5
     whitelist:
       components:
       - MobState

Resources/Prototypes/Reagents/biological.yml

@@ -164,8 +164,6 @@
       - !type:SatiateThirst
         factor: 1.5
     # Dragon doesn't require airloss healing, so omnizine is still best for humans.
-    Medicine:
-      effects:
       - !type:ModifyBloodLevel
         amount: 3
       - !type:HealthChange