merger improvements

src/lib.rs

@@ -112,8 +112,6 @@ pub fn jspg_validate(schema_id: &str, instance: JsonB) -> JsonB {
 
 #[cfg_attr(not(test), pg_extern)]
 pub fn jspg_stems() -> JsonB {
-  use serde_json::Value;
-
   let engine_opt = {
     let lock = GLOBAL_JSPG.read().unwrap();
     lock.clone()