assistant2: Remove unneeded debug logging (#27030)

This PR removes the debug logging added in
https://github.com/zed-industries/zed/pull/23722, as we no longer need
it.

Release Notes:

- N/A

crates/zed/src/zed.rs

@@ -460,14 +460,12 @@ fn initialize_panels(
         };
 
         let (assistant_panel, assistant2_panel) = if is_assistant2_enabled {
-            log::info!("[assistant2-debug] initializing Assistant2");
             let assistant2_panel = assistant2::AssistantPanel::load(
                 workspace_handle.clone(),
                 prompt_builder,
                 cx.clone(),
             )
             .await?;
-            log::info!("[assistant2-debug] finished initializing Assistant2");
 
             (None, Some(assistant2_panel))
         } else {
@@ -483,7 +481,6 @@ fn initialize_panels(
 
         workspace_handle.update_in(&mut cx, |workspace, window, cx| {
             if let Some(assistant2_panel) = assistant2_panel {
-                log::info!("[assistant2-debug] adding Assistant2 panel");
                 workspace.add_panel(assistant2_panel, window, cx);
             }