Clean up some stray todos (#11380)

Quick little todo comment cleanups, either because they aren't needed or
a comment will suffice.

Release Notes:

- N/A

crates/assistant2/src/assistant2.rs

@@ -110,7 +110,6 @@ impl AssistantPanel {
             let user_store = app_state.user_store.clone();
 
             cx.new_view(|cx| {
-                // todo!("this will panic if the semantic index failed to load or has not loaded yet")
                 let project_index = cx.update_global(|semantic_index: &mut SemanticIndex, cx| {
                     semantic_index.project_index(project.clone(), cx)
                 });
@@ -819,9 +818,7 @@ impl AssistantChat {
                     });
 
                     for tool_call in tool_calls {
-                        // todo!(): we should not be sending when the tool is still running / has no result
-                        // For now I'm going to have to assume we send an empty string because otherwise
-                        // the Chat API will break -- there is a required message for every tool call by ID
+                        // Every tool call _must_ have a result by ID, otherwise OpenAI will error.
                         let content = match &tool_call.result {
                             Some(result) => result.format(&tool_call.name),
                             None => "".to_string(),

crates/assistant2/src/attachments.rs

@@ -160,7 +160,6 @@ impl Render for FileAttachmentView {
                     })
                     .into_any_element()
             }
-            // todo!(): show a better error view when the file attaching didn't work
             Err(err) => div().child(err.to_string()).into_any_element(),
         }
     }

crates/collab/src/db/queries/projects.rs

@@ -78,7 +78,6 @@ impl Database {
                 .await?;
 
                 // todo! check user is a project-collaborator
-
                 let room = self.get_room(room_id, &tx).await?;
                 return Ok((project.id, room));
             }

crates/supermaven/src/supermaven_completion_provider.rs

@@ -74,7 +74,6 @@ impl InlineCompletionProvider for SupermavenCompletionProvider {
         _direction: Direction,
         _cx: &mut ModelContext<Self>,
     ) {
-        // todo!("cycling")
     }
 
     fn accept(&mut self, _cx: &mut ModelContext<Self>) {