tpl: Fix the remaining template funcs namespace issues

See #3042

tpl/inflect/inflect.go

@@ -28,9 +28,6 @@ func New() *Namespace {
 // Namespace provides template functions for the "inflect" namespace.
 type Namespace struct{}
 
-// Namespace returns a pointer to the current namespace instance.
-func (ns *Namespace) Namespace() *Namespace { return ns }
-
 // Humanize returns the humanized form of a single parameter.
 //
 // If the parameter is either an integer or a string containing an integer

tpl/inflect/inflect_test.go

@@ -8,14 +8,6 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func TestNamespace(t *testing.T) {
-	t.Parallel()
-
-	ns := New()
-
-	assert.Equal(t, ns, ns.Namespace(), "object pointers should match")
-}
-
 func TestInflect(t *testing.T) {
 	t.Parallel()