removed unused imports economic

src/economic/scraper.rs

@@ -1,8 +1,7 @@
 // src/economic/scraper.rs
-use super::types::{EconomicEvent, ScrapeResult};
+use super::types::{EconomicEvent};
 use fantoccini::Client;
 use tokio::time::{sleep, Duration};
-use chrono::{Local, NaiveDate};
 
 const EXTRACTION_JS: &str = include_str!("extraction_script.js");