diff --git a/net/net_linux.go b/net/net_linux.go
index 93cb037..6db04b6 100644
--- a/net/net_linux.go
+++ b/net/net_linux.go
@@ -552,7 +552,7 @@ func getProcInodes(root string, pid int32, max int) (map[string][]inodeMap, erro
 		return ret, err
 	}
 	defer f.Close()
-	dirEntries, err := readDir(f, max)
+	dirEntries, err := f.ReadDir(max)
 	if err != nil {
 		return ret, err
 	}
diff --git a/net/net_linux_111.go b/net/net_linux_111.go
deleted file mode 100644
index c173944..0000000
--- a/net/net_linux_111.go
+++ /dev/null
@@ -1,12 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-//go:build !go1.16
-
-package net
-
-import (
-	"os"
-)
-
-func readDir(f *os.File, max int) ([]os.FileInfo, error) {
-	return f.Readdir(max)
-}
diff --git a/net/net_linux_116.go b/net/net_linux_116.go
deleted file mode 100644
index f7a3687..0000000
--- a/net/net_linux_116.go
+++ /dev/null
@@ -1,12 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-//go:build go1.16
-
-package net
-
-import (
-	"os"
-)
-
-func readDir(f *os.File, max int) ([]os.DirEntry, error) {
-	return f.ReadDir(max)
-}
diff --git a/net/net_linux_netlink_test.go b/net/net_linux_netlink_test.go
deleted file mode 100644
index 2d01a1a..0000000
--- a/net/net_linux_netlink_test.go
+++ /dev/null
@@ -1,20 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-//go:build linux
-
-package net
-
-import "testing"
-
-func BenchmarkGetConnectionsInet(b *testing.B) {
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		Connections("inet")
-	}
-}
-
-func BenchmarkGetConnectionsAll(b *testing.B) {
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		Connections("all")
-	}
-}