Remove registerEntityEventType calls - events already registered by core

The ECS event types (DamageBlockEvent, BreakBlockEvent, PlaceBlockEvent,
UseBlockEvent.Pre) are already registered by the Hytale core game.
Attempting to register them again throws IllegalArgumentException.

Just register the systems that handle these events.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: cryptobench

src/main/java/com/landclaims/LandClaims.java

@@ -19,10 +19,6 @@
 import com.landclaims.systems.BlockUseProtectionSystem;
 import com.hypixel.hytale.server.core.plugin.JavaPlugin;
 import com.hypixel.hytale.server.core.plugin.JavaPluginInit;
-import com.hypixel.hytale.server.core.event.events.ecs.BreakBlockEvent;
-import com.hypixel.hytale.server.core.event.events.ecs.DamageBlockEvent;
-import com.hypixel.hytale.server.core.event.events.ecs.PlaceBlockEvent;
-import com.hypixel.hytale.server.core.event.events.ecs.UseBlockEvent;
 
 /**
  * LandClaims - A chunk-based land claiming plugin with playtime-based limits.
@@ -80,14 +76,7 @@ public void setup() {
         // Register ECS block protection systems
         getLogger().atInfo().log("Registering ECS block protection systems...");
         try {
-            // Register entity event types first - required before systems can receive these events
-            getEntityStoreRegistry().registerEntityEventType(DamageBlockEvent.class);
-            getEntityStoreRegistry().registerEntityEventType(BreakBlockEvent.class);
-            getEntityStoreRegistry().registerEntityEventType(PlaceBlockEvent.class);
-            getEntityStoreRegistry().registerEntityEventType(UseBlockEvent.Pre.class);
-            getLogger().atInfo().log("Registered entity event types");
-
-            // Now register the systems that handle these events
+            // Event types are already registered by the core game, just register our systems
             getEntityStoreRegistry().registerSystem(new BlockDamageProtectionSystem(claimManager, getLogger()));
             getLogger().atInfo().log("Registered BlockDamageProtectionSystem");
             getEntityStoreRegistry().registerSystem(new BlockBreakProtectionSystem(claimManager, getLogger()));