Remove the dead power animation override and valid item flag code

PowersManager.AnimationOverrides was loaded from
static_power_animation_override and never read. validItemFlags on
AbstractPowerAction was always 0 and its getter had no callers; its
loader (static_power_effect_allowed_item) was already commented out.
No value change.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/engine/db/handlers/dbPowerHandler.java

@@ -10,7 +10,6 @@
 package engine.db.handlers;
 
 import engine.gameManager.DbManager;
-import engine.gameManager.PowersManager;
 import engine.mbEnums;
 import engine.objects.Mob;
 import engine.powers.EffectsBase;
@@ -53,30 +52,4 @@ public class dbPowerHandler extends dbHandlerBase {
         }
     }
 
-    public static void addAllAnimationOverrides() {
-
-        try (Connection connection = DbManager.getConnection();
-             PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM static_power_animation_override")) {
-
-            ResultSet rs = preparedStatement.executeQuery();
-
-            String IDString;
-            int animation;
-            while (rs.next()) {
-                IDString = rs.getString("IDString");
-
-                EffectsBase eb = PowersManager.getEffectByIDString(IDString);
-                if (eb != null)
-                    IDString = eb.getIDString();
-
-                animation = rs.getInt("animation");
-                PowersManager.AnimationOverrides.put(IDString, animation);
-
-            }
-        } catch (Exception e) {
-            Logger.error(e);
-        }
-
-    }
-
 }