diff --git a/runtime/sam/expr/result/buffer.go b/runtime/sam/expr/result/buffer.go
deleted file mode 100644
index 85aa0d39bf..0000000000
--- a/runtime/sam/expr/result/buffer.go
+++ /dev/null
@@ -1,34 +0,0 @@
-package result
-
-import (
-	"github.com/brimdata/super"
-	"github.com/brimdata/super/pkg/nano"
-	"github.com/brimdata/super/scode"
-)
-
-type Buffer scode.Bytes
-
-func (b *Buffer) Int(v int64) scode.Bytes {
-	*b = Buffer(super.AppendInt(scode.Bytes((*b)[:0]), v))
-	return scode.Bytes(*b)
-}
-
-func (b *Buffer) Uint(v uint64) scode.Bytes {
-	*b = Buffer(super.AppendUint(scode.Bytes((*b)[:0]), v))
-	return scode.Bytes(*b)
-}
-
-func (b *Buffer) Float32(v float32) scode.Bytes {
-	*b = Buffer(super.AppendFloat32(scode.Bytes((*b)[:0]), v))
-	return scode.Bytes(*b)
-}
-
-func (b *Buffer) Float64(v float64) scode.Bytes {
-	*b = Buffer(super.AppendFloat64(scode.Bytes((*b)[:0]), v))
-	return scode.Bytes(*b)
-}
-
-func (b *Buffer) Time(v nano.Ts) scode.Bytes {
-	*b = Buffer(super.AppendTime(scode.Bytes((*b)[:0]), v))
-	return scode.Bytes(*b)
-}