diff --git a/dialect/mssqldialect/scan.go b/dialect/mssqldialect/scan.go
deleted file mode 100755
index e01f3f4b..00000000
--- a/dialect/mssqldialect/scan.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package mssqldialect
-
-import (
-	"reflect"
-
-	"github.com/uptrace/bun/schema"
-)
-
-func scanner(typ reflect.Type) schema.ScannerFunc {
-	return schema.Scanner(typ)
-}
diff --git a/dialect/mysqldialect/scan.go b/dialect/mysqldialect/scan.go
deleted file mode 100644
index 7a6af7f4..00000000
--- a/dialect/mysqldialect/scan.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package mysqldialect
-
-import (
-	"reflect"
-
-	"github.com/uptrace/bun/schema"
-)
-
-func scanner(typ reflect.Type) schema.ScannerFunc {
-	return schema.Scanner(typ)
-}
diff --git a/dialect/pgdialect/array_scan.go b/dialect/pgdialect/array_scan.go
deleted file mode 100644
index 6b8abda3..00000000
--- a/dialect/pgdialect/array_scan.go
+++ /dev/null
@@ -1 +0,0 @@
-package pgdialect
diff --git a/dialect/pgdialect/scan.go b/dialect/pgdialect/scan.go
deleted file mode 100644
index e06bb8bc..00000000
--- a/dialect/pgdialect/scan.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package pgdialect
-
-import (
-	"reflect"
-
-	"github.com/uptrace/bun/schema"
-)
-
-func scanner(typ reflect.Type) schema.ScannerFunc {
-	return schema.Scanner(typ)
-}
diff --git a/dialect/sqlitedialect/scan.go b/dialect/sqlitedialect/scan.go
deleted file mode 100644
index f6f02b55..00000000
--- a/dialect/sqlitedialect/scan.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package sqlitedialect
-
-import (
-	"reflect"
-
-	"github.com/uptrace/bun/schema"
-)
-
-func scanner(typ reflect.Type) schema.ScannerFunc {
-	return schema.Scanner(typ)
-}