tpl: Fix the remaining template funcs namespace issues

See #3042

tpl/time/init.go

@@ -26,6 +26,7 @@ func init() {
 
 		examples := [][2]string{
 			{`{{ (time "2015-01-21").Year }}`, `2015`},
+			{`dateFormat: {{ dateFormat "Monday, Jan 2, 2006" "2015-01-21" }}`, `dateFormat: Wednesday, Jan 21, 2015`},
 		}
 
 		return &internal.TemplateFuncsNamespace{

tpl/time/time.go

@@ -27,9 +27,6 @@ func New() *Namespace {
 // Namespace provides template functions for the "time" namespace.
 type Namespace struct{}
 
-// Namespace returns a pointer to the current namespace instance.
-func (ns *Namespace) Namespace() *Namespace { return ns }
-
 // AsTime converts the textual representation of the datetime string into
 // a time.Time interface.
 func (ns *Namespace) AsTime(v interface{}) (interface{}, error) {

tpl/time/time_test.go

@@ -16,18 +16,8 @@ package time
 import (
 	"testing"
 	"time"
-
-	"github.com/stretchr/testify/assert"
 )
 
-func TestNamespace(t *testing.T) {
-	t.Parallel()
-
-	ns := New()
-
-	assert.Equal(t, ns, ns.Namespace(), "object pointers should match")
-}
-
 func TestFormat(t *testing.T) {
 	t.Parallel()