tpl: Fix the remaining template funcs namespace issues

See #3042

tpl/tplimpl/templateFuncster.go

@@ -25,16 +25,14 @@ import (
 
 // Some of the template funcs are'nt entirely stateless.
 type templateFuncster struct {
-	funcMap        template.FuncMap
-	cachedPartials partialCache
+	funcMap template.FuncMap
 
 	*deps.Deps
 }
 
 func newTemplateFuncster(deps *deps.Deps) *templateFuncster {
 	return &templateFuncster{
-		Deps:           deps,
-		cachedPartials: partialCache{p: make(map[string]interface{})},
+		Deps: deps,
 	}
 }