diff --git a/daemon/sorter.go b/daemon/sorter.go
deleted file mode 100644
index c1525aa350f1f..0000000000000
--- a/daemon/sorter.go
+++ /dev/null
@@ -1,25 +0,0 @@
-package daemon
-
-import "sort"
-
-type containerSorter struct {
-	containers []*Container
-	by         func(i, j *Container) bool
-}
-
-func (s *containerSorter) Len() int {
-	return len(s.containers)
-}
-
-func (s *containerSorter) Swap(i, j int) {
-	s.containers[i], s.containers[j] = s.containers[j], s.containers[i]
-}
-
-func (s *containerSorter) Less(i, j int) bool {
-	return s.by(s.containers[i], s.containers[j])
-}
-
-func sortContainers(containers []*Container, predicate func(i, j *Container) bool) {
-	s := &containerSorter{containers, predicate}
-	sort.Sort(s)
-}