refactor(server): drop unused synchronous get_chunk path

crates/server/src/world_server.rs

@@ -30,8 +30,6 @@ pub struct StreamStats {
 /// The server's authoritative representation of the world.
 #[derive(Resource)]
 pub struct ServerWorld {
-    /// Deterministic voxel source used to generate missing chunks on demand.
-    generator: Arc<VoxelGenerator>,
     /// Currently resident chunks, keyed by chunk-space position.
     chunks: HashMap<ChunkPos, Chunk>,
     /// Sending end of the job channel; the main thread pushes positions that require generation.
@@ -82,7 +80,6 @@ impl ServerWorld {
         drop(result_tx);
 
         Self {
-            generator,
             chunks: HashMap::new(),
             job_tx,
             result_rx,
@@ -91,13 +88,6 @@ impl ServerWorld {
         }
     }
 
-    /// Retrieves a reference to the chunk at the given position, generating it if necessary.
-    pub fn get_chunk(&mut self, pos: ChunkPos) -> &Chunk {
-        self.chunks
-            .entry(pos)
-            .or_insert_with(|| self.generator.generate_chunk(pos))
-    }
-
     /// Number of chunks currently resident in memory.
     #[must_use]
     pub fn loaded_count(&self) -> usize {