diff --git a/store/postgres/src/vid_batcher.rs b/store/postgres/src/vid_batcher.rs
index e6dbd065888..81da5382e3d 100644
--- a/store/postgres/src/vid_batcher.rs
+++ b/store/postgres/src/vid_batcher.rs
@@ -1,9 +1,6 @@
 use std::time::{Duration, Instant};
 
 use diesel::{
-    deserialize::FromSql,
-    pg::Pg,
-    serialize::{Output, ToSql},
     sql_query,
     sql_types::{BigInt, Integer},
     PgConnection, RunQueryDsl as _,
@@ -62,22 +59,6 @@ impl AdaptiveBatchSize {
     }
 }
 
-impl ToSql<BigInt, Pg> for AdaptiveBatchSize {
-    fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Pg>) -> diesel::serialize::Result {
-        <i64 as ToSql<BigInt, Pg>>::to_sql(&self.size, out)
-    }
-}
-
-impl FromSql<BigInt, Pg> for AdaptiveBatchSize {
-    fn from_sql(bytes: diesel::pg::PgValue) -> diesel::deserialize::Result<Self> {
-        let size = <i64 as FromSql<BigInt, Pg>>::from_sql(bytes)?;
-        Ok(AdaptiveBatchSize {
-            size,
-            target: ENV_VARS.store.batch_target_duration,
-        })
-    }
-}
-
 /// A timer that works like `std::time::Instant` in non-test code, but
 /// returns a fake elapsed value in tests
 struct Timer {