Revert 0bf60996c5 (#3990)

Post-merge some issues were discovered with the ways typing is used for
proto reflection. This will be reworked without moving the subtypes
around.

cmd/boundary/main.go

@@ -4,11 +4,14 @@
 package main
 
 import (
+	"math/rand"
 	"os"
+	"time"
 
 	"github.com/hashicorp/boundary/internal/cmd"
 )
 
 func main() {
+	rand.Seed(time.Now().UnixNano())
 	os.Exit(cmd.Run(os.Args[1:]))
 }