diff --git a/pkg/path/os.go b/pkg/path/os.go
index f55193977..6eb640d10 100644
--- a/pkg/path/os.go
+++ b/pkg/path/os.go
@@ -41,7 +41,6 @@ type osInfo interface {
 	splitList(path string) []string
 	volumeNameLen(path string) int
 	IsAbs(path string) (b bool)
-	HasPrefix(p, prefix string) bool
 	join(elem []string) string
 	sameWord(a, b string) bool
 }
diff --git a/pkg/path/path_nix.go b/pkg/path/path_nix.go
index eb1b193af..726f85eae 100644
--- a/pkg/path/path_nix.go
+++ b/pkg/path/path_nix.go
@@ -44,14 +44,6 @@ func (o unixInfo) volumeNameLen(path string) int {
 	return 0
 }
 
-// HasPrefix exists for historical compatibility and should not be used.
-//
-// Deprecated: HasPrefix does not respect path boundaries and
-// does not ignore case when required.
-func (o unixInfo) HasPrefix(p, prefix string) bool {
-	return strings.HasPrefix(p, prefix)
-}
-
 func (o unixInfo) splitList(path string) []string {
 	if path == "" {
 		return []string{}
diff --git a/pkg/path/path_p9.go b/pkg/path/path_p9.go
index f3379ea5f..961539aa0 100644
--- a/pkg/path/path_p9.go
+++ b/pkg/path/path_p9.go
@@ -42,14 +42,6 @@ func (o plan9Info) volumeNameLen(path string) int {
 	return 0
 }
 
-// HasPrefix exists for historical compatibility and should not be used.
-//
-// Deprecated: HasPrefix does not respect path boundaries and
-// does not ignore case when required.
-func (o plan9Info) HasPrefix(p, prefix string) bool {
-	return strings.HasPrefix(p, prefix)
-}
-
 func (o plan9Info) splitList(path string) []string {
 	if path == "" {
 		return []string{}
diff --git a/pkg/path/path_win.go b/pkg/path/path_win.go
index 054ae28aa..d854498d9 100644
--- a/pkg/path/path_win.go
+++ b/pkg/path/path_win.go
@@ -116,17 +116,6 @@ func (os windowsInfo) volumeNameLen(path string) int {
 	return 0
 }
 
-// HasPrefix exists for historical compatibility and should not be used.
-//
-// Deprecated: HasPrefix does not respect path boundaries and
-// does not ignore case when required.
-func (os windowsInfo) HasPrefix(p, prefix string) bool {
-	if strings.HasPrefix(p, prefix) {
-		return true
-	}
-	return strings.HasPrefix(strings.ToLower(p), strings.ToLower(prefix))
-}
-
 func (os windowsInfo) splitList(path string) []string {
 	// The same implementation is used in LookPath in os/exec;
 	// consider changing os/exec when changing this.