Zombie Rework & Polymorph Expansion (#8413)

Co-authored-by: Kara <lunarautomaton6@gmail.com>
Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Server/Disease/Components/DiseaseBuildupComponent.cs

@@ -1,19 +0,0 @@
-namespace Content.Server.Disease.Components
-{
-    /// <summary>
-    /// The component which records the buildup/progression of an infection
-    /// </summary>
-    [RegisterComponent]
-    public sealed class DiseaseBuildupComponent : Component
-    {
-        /// This could be served to be generalized to allow for multiple
-        /// diseases to build up at once, but it doesn't matter too much.
-
-        /// <summary>
-        /// The current amount of progression that has built up.
-        /// </summary>
-        [DataField("progression")]
-        [ViewVariables(VVAccess.ReadWrite)]
-        public float Progression = 0.00f;
-    }
-}