Don't set agent props twice (#4872)

Co-authored-by: Douwe Osinga <douwe@squareup.com>

crates/goose-server/src/routes/reply.rs

@@ -10,7 +10,6 @@ use bytes::Bytes;
 use futures::{stream::StreamExt, Stream};
 use goose::conversation::message::{Message, MessageContent};
 use goose::conversation::Conversation;
-use goose::execution::SessionExecutionMode;
 use goose::mcp_utils::ToolResult;
 use goose::permission::{Permission, PermissionConfirmation};
 use goose::session::SessionManager;
@@ -207,10 +206,7 @@ async fn reply_handler(
     let task_tx = tx.clone();
 
     drop(tokio::spawn(async move {
-        let agent = match state
-            .get_agent(session_id.clone(), SessionExecutionMode::Interactive)
-            .await
-        {
+        let agent = match state.get_agent(session_id.clone()).await {
             Ok(agent) => agent,
             Err(e) => {
                 tracing::error!("Failed to get session agent: {}", e);