Fix an issue where players would be pushed out when placing blocks

Author: wode490390

src/main/java/cn/nukkit/level/Level.java

@@ -3239,8 +3239,8 @@ public Item useItemOn(Vector3 vector, Item item, BlockFace face, float fx, float
                     AxisAlignedBB bb = player.getBoundingBox().getOffsetBoundingBox(diff.x, diff.y, diff.z);
                     bb.expand(-0.01, -0.01, -0.01);
                     if (boundingBox.intersectsWith(bb)) {
-                        // This is a hack to prevent the player from placing blocks inside themselves
-                        return LazyHolder.INVALID_ITEM;
+                        // prevent the player from placing blocks inside themselves
+                        return null;
                     }
                 }
             }
@@ -5657,8 +5657,4 @@ protected void closeSub() {
      */
     private record LightUpdateEntry(int x, int y, int z, int light) {
     }
-
-    private static class LazyHolder {
-        static final Item INVALID_ITEM = new Item(10000); //HACK
-    }
 }