Removed the ' // +build !go1.22' build tag (#735)

* Update rand.1.22.go

Removed usage of  // +build go1.22

* Delete internal/util/rand.go

Deleted file using // +build !go1.22

Author: tarunprabhu11

internal/util/rand.1.22.go

@@ -1,6 +1,3 @@
-//go:build go1.22
-// +build go1.22
-
 package util
 
 import (