uprng.Reader doesn't need to be seeded at pkg init

the time check take care of cover the first seed

peer/internal/uprng/uprng.go

@@ -19,7 +19,7 @@ import (
 var Reader io.Reader
 
 func init() {
-	Reader = newPRNG()
+	Reader = new(prng)
 }
 
 const (
@@ -39,12 +39,6 @@ type prng struct {
 	mu     sync.Mutex
 }
 
-func newPRNG() *prng {
-	p := new(prng)
-	p.seed()
-	return p
-}
-
 func (p *prng) seed() {
 	_, err := cryptorand.Read(key)
 	if err != nil {