Revert "Add template_dir function to HCL"

This reverts commit 3b9a0427cd.

hcl2template/function/templatedir.go

@@ -1,18 +0,0 @@
-package function
-
-import (
-	"github.com/zclconf/go-cty/cty"
-	"github.com/zclconf/go-cty/cty/function"
-)
-
-// MakeTemplateDirFunc constructs a function that returns the directory
-// in which the configuration file is located.
-func MakeTemplateDirFunc(baseDir string) function.Function {
-	return function.New(&function.Spec{
-		Params: []function.Parameter{},
-		Type:   function.StaticReturnType(cty.String),
-		Impl: func(args []cty.Value, retType cty.Type) (cty.Value, error) {
-			return cty.StringVal(baseDir), nil
-		},
-	})
-}

hcl2template/functions.go

@@ -94,7 +94,6 @@ func Functions(basedir string) map[string]function.Function {
 		"split":           stdlib.SplitFunc,
 		"strrev":          stdlib.ReverseFunc,
 		"substr":          stdlib.SubstrFunc,
-		"template_dir":    pkrfunction.MakeTemplateDirFunc(basedir),
 		"timestamp":       pkrfunction.TimestampFunc,
 		"timeadd":         stdlib.TimeAddFunc,
 		"title":           stdlib.TitleFunc,

website/data/docs-navigation.js

@@ -113,7 +113,6 @@ export default [
               'fileset',
               'pathexpand',
               'pwd',
-              'template_dir',
             ],
           },
           {

website/pages/docs/from-1.5/functions/file/template_dir.mdx

@@ -1,21 +0,0 @@
----
-layout: docs
-page_title: template_dir - Functions - Configuration Language
-sidebar_title: template_dir
-description: The template_dir function returns the directory in which the configuration file is located.
----
-
-# `template_dir` Function
-
-`template_dir` returns the directory in which the configuration file is located.
-
-```hcl
-template_dir()
-```
-
-## Examples
-
-```shell-session
-> template_dir()
-packer
-```