Don't manually encode jsonb values

Signed-off-by: Lee Smet <lee.smet@hotmail.com>

heromodels/src/db/postgres.rs

@@ -208,9 +208,6 @@ where
     fn set(&self, value: &M) -> Result<(u32, M), super::Error<Self::Error>> {
         let mut con = self.pool.get().map_err(Error::from)?;
 
-        // let ser_val = serde_json::to_string(&value).map_err(Error::from)?;
-        let ser_val = jsonb::to_owned_jsonb(&value).map_err(Error::from)?;
-
         if value.get_id() == 0 {
             // NOTE: We perform a query here since we want the returned value which has the updated ID
             let Some(row) = con