Revert "Merge pull request 101888 from kolyshkin/update-runc-rc94"

This reverts commit b1b06fe0a4, reversing
changes made to 382a33986b.

vendor/github.com/opencontainers/runc/libcontainer/user/user_fuzzer.go

@@ -1,42 +0,0 @@
-// +build gofuzz
-
-package user
-
-import (
-	"io"
-	"strings"
-)
-
-func IsDivisbleBy(n int, divisibleby int) bool {
-	return (n % divisibleby) == 0
-}
-
-func FuzzUser(data []byte) int {
-	if len(data) == 0 {
-		return -1
-	}
-	if !IsDivisbleBy(len(data), 5) {
-		return -1
-	}
-
-	var divided [][]byte
-
-	chunkSize := len(data) / 5
-
-	for i := 0; i < len(data); i += chunkSize {
-		end := i + chunkSize
-
-		divided = append(divided, data[i:end])
-	}
-
-	_, _ = ParsePasswdFilter(strings.NewReader(string(divided[0])), nil)
-
-	var passwd, group io.Reader
-
-	group = strings.NewReader(string(divided[1]))
-	_, _ = GetAdditionalGroups([]string{string(divided[2])}, group)
-
-	passwd = strings.NewReader(string(divided[3]))
-	_, _ = GetExecUser(string(divided[4]), nil, passwd, group)
-	return 1
-}