Iteam cleanup + less migration

module/documents/actor.mjs

@@ -20,16 +20,12 @@ export default class OathHammerActor extends Actor {
     }
   }
 
-  getArmorRating() {
-    let rating = 0
+  getArmorValue() {
     for (const item of this.items) {
       if (item.type === "armor" && item.system.equipped) {
-        rating += Number(item.system.armorRating) || 0
-      }
-      if (item.type === "shield" && item.system.equipped) {
-        rating += Number(item.system.shieldBonus) || 0
+        return Number(item.system.armorValue) || 0
       }
     }
-    return rating
+    return 0
   }
 }