fix(router): fix refunds and payment_attempts kv flow (#2362)

crates/storage_impl/src/utils.rs

@@ -68,13 +68,3 @@ where
         },
     }
 }
-
-/// Generates hscan field pattern. Suppose the field is pa_1234 it will generate
-/// pa_*
-pub fn generate_hscan_pattern_for_attempt(sk: &str) -> String {
-    sk.split('_')
-        .take(1)
-        .chain(["*"])
-        .collect::<Vec<&str>>()
-        .join("_")
-}