Revert "Solution Entities" (#23160)

Revert "Solution Entities (#21916)"

This reverts commit d75e743dd7.

Content.Server/Chemistry/ReagentEffects/ModifyBloodLevel.cs

@@ -8,10 +8,10 @@ namespace Content.Server.Chemistry.ReagentEffects;
 
 public sealed partial class ModifyBloodLevel : ReagentEffect
 {
-    [DataField]
+    [DataField("scaled")]
     public bool Scaled = false;
 
-    [DataField]
+    [DataField("amount")]
     public FixedPoint2 Amount = 1.0f;
 
     protected override string? ReagentEffectGuidebookText(IPrototypeManager prototype, IEntitySystemManager entSys)