Update

vendor/tailscale.com/util/mak/mak.go

@@ -5,11 +5,6 @@
 // things, notably to maps, but also slices.
 package mak
 
-import (
-	"fmt"
-	"reflect"
-)
-
 // Set populates an entry in a map, making the map if necessary.
 //
 // That is, it assigns (*m)[k] = v, making *m if it was nil.
@@ -20,35 +15,6 @@ func Set[K comparable, V any, T ~map[K]V](m *T, k K, v V) {
 	(*m)[k] = v
 }
 
-// NonNil takes a pointer to a Go data structure
-// (currently only a slice or a map) and makes sure it's non-nil for
-// JSON serialization. (In particular, JavaScript clients usually want
-// the field to be defined after they decode the JSON.)
-//
-// Deprecated: use NonNilSliceForJSON or NonNilMapForJSON instead.
-func NonNil(ptr any) {
-	if ptr == nil {
-		panic("nil interface")
-	}
-	rv := reflect.ValueOf(ptr)
-	if rv.Kind() != reflect.Ptr {
-		panic(fmt.Sprintf("kind %v, not Ptr", rv.Kind()))
-	}
-	if rv.Pointer() == 0 {
-		panic("nil pointer")
-	}
-	rv = rv.Elem()
-	if rv.Pointer() != 0 {
-		return
-	}
-	switch rv.Type().Kind() {
-	case reflect.Slice:
-		rv.Set(reflect.MakeSlice(rv.Type(), 0, 0))
-	case reflect.Map:
-		rv.Set(reflect.MakeMap(rv.Type()))
-	}
-}
-
 // NonNilSliceForJSON makes sure that *slicePtr is non-nil so it will
 // won't be omitted from JSON serialization and possibly confuse JavaScript
 // clients expecting it to be present.