cleanup: remove placeholder comments after removing work_done; no behavior change

Author: ariawisp

crates/cubecl-cuda/src/compute/server.rs

@@ -544,7 +544,6 @@ impl ComputeServer for CudaServer {
         Box::pin(self.sync_stream_async())
     }
 
-    // Completion fences are handled through `sync()`.
 
     fn start_profile(&mut self) -> ProfilingToken {
         // Wait for current work to be done.

crates/cubecl-hip/src/compute/server.rs

@@ -318,7 +318,6 @@ impl ComputeServer for HipServer {
         Box::pin(self.sync_stream_async())
     }
 
-    // Completion fences are handled through `sync()`.
 
     fn start_profile(&mut self) -> ProfilingToken {
         cubecl_common::future::block_on(self.sync());

crates/cubecl-runtime/src/channel/base.rs

@@ -37,7 +37,6 @@ pub trait ComputeChannel<Server: ComputeServer>: Clone + core::fmt::Debug + Send
     /// Wait for the completion of every task in the server.
     fn sync(&self) -> DynFut<()>;
 
-    // Completion fences are handled through `sync()`.
 
     /// Given a resource handle, return the storage resource.
     fn get_resource(

crates/cubecl-runtime/src/channel/cell.rs

@@ -85,7 +85,7 @@ where
         server.sync()
     }
 
-    // Completion fences are handled through `sync()`.
+    
 
     fn get_resource(
         &self,

crates/cubecl-runtime/src/channel/mpsc.rs

@@ -172,7 +172,7 @@ where
                         server.sync().await;
                         callback.send(()).await.unwrap();
                     }
-                    // Removed: WorkDone
+                    
                     Message::Flush => {
                         server.flush();
                     }
@@ -330,7 +330,7 @@ where
         })
     }
 
-    // Completion fences are handled through `sync()`.
+    
 
     fn memory_usage(&self) -> crate::memory_management::MemoryUsage {
         let (callback, response) = async_channel::unbounded();

crates/cubecl-runtime/src/channel/mutex.rs

@@ -79,7 +79,6 @@ where
         server.sync()
     }
 
-    // Completion fences are handled through `sync()`.
 
     fn get_resource(
         &self,

crates/cubecl-wgpu/src/compute/server.rs

@@ -199,7 +199,6 @@ impl ComputeServer for WgpuServer {
         self.stream.sync()
     }
 
-    // Completion fences are handled through `sync()`.
 
     fn start_profile(&mut self) -> ProfilingToken {
         self.stream.start_profile()