remove duplicate blog in the router example

packages/router/src/hooks/use_navigator.rs

@@ -1,4 +1,4 @@
-use dioxus_lib::prelude::{consume_context, try_consume_context, use_hook};
+use dioxus_lib::prelude::{try_consume_context, use_hook};
 
 use crate::prelude::{Navigator, RouterContext};