refactor: implement s3 storage

store/db/sqlite/inbox.go

@@ -2,7 +2,6 @@ package sqlite
 
 import (
 	"context"
-	"database/sql"
 	"strings"
 
 	"github.com/pkg/errors"
@@ -124,22 +123,3 @@ func (d *DB) DeleteInbox(ctx context.Context, delete *store.DeleteInbox) error {
 	}
 	return nil
 }
-
-func vacuumInbox(ctx context.Context, tx *sql.Tx) error {
-	stmt := `
-	DELETE FROM
-		inbox
-	WHERE
-		sender_id NOT IN (
-			SELECT
-				id
-			FROM
-				user
-		)`
-	_, err := tx.ExecContext(ctx, stmt)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}