Remove incorrect warning

route/rule_user.go

@@ -9,15 +9,9 @@ import (
 	F "github.com/sagernet/sing/common/format"
 )
 
-var (
-	warnUserOnNonLinux = warning.New(
-		func() bool { return !C.IsLinux },
-		"rule item `user` is only supported on Linux",
-	)
-	warnUserOnCGODisabled = warning.New(
-		func() bool { return !C.CGO_ENABLED },
-		"rule item `user` is only supported with CGO enabled, rebuild with CGO_ENABLED=1",
-	)
+var warnUserOnNonLinux = warning.New(
+	func() bool { return !C.IsLinux },
+	"rule item `user` is only supported on Linux",
 )
 
 var _ RuleItem = (*UserItem)(nil)
@@ -29,7 +23,6 @@ type UserItem struct {
 
 func NewUserItem(users []string) *UserItem {
 	warnUserOnNonLinux.Check()
-	warnUserOnCGODisabled.Check()
 	userMap := make(map[string]bool)
 	for _, protocol := range users {
 		userMap[protocol] = true