don't store fedtomag twice

src/entity/gateway/postgres/postgres.rs

@@ -292,10 +292,6 @@ impl EntityGateway for PostgresGateway {
     }
 
     async fn feed_mag(&mut self, mag_item_id: &ItemEntityId, tool_item_id: &ItemEntityId) {
-        sqlx::query("insert into item_location (item, location) values ($1, $2);")
-            .bind(tool_item_id.0)
-            .bind(sqlx::types::Json(PgItemLocationDetail::from(ItemLocation::FedToMag {mag: *mag_item_id})))
-            .execute(&self.pool).await.unwrap();
         sqlx::query("insert into mag_modifier (mag, modifier) values ($1, $2);")
             .bind(mag_item_id.0)
             .bind(sqlx::types::Json(PgMagModifierDetail::from(mag::MagModifier::FeedMag{food: *tool_item_id})))