diff --git a/hcl2template/zz_retrocompat.go b/hcl2template/zz_retrocompat.go
deleted file mode 100644
index 2e67b8947..000000000
--- a/hcl2template/zz_retrocompat.go
+++ /dev/null
@@ -1,156 +0,0 @@
-package hcl2template
-
-import (
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-	"strings"
-)
-
-func translateBuilder(path string) (string, error) {
-
-	type ConfigV1 map[string]json.RawMessage
-
-	type ConfigV1V2 struct {
-		Artifact map[string]map[string]json.RawMessage `json:"artifact"`
-	}
-
-	type Type struct {
-		Name string `json:"name"`
-		Type string `json:"type"`
-	}
-	type PostProcessor struct {
-		Type   string   `json:"type"`
-		Except []string `json:"except"`
-		Only   []string `json:"only"`
-	}
-
-	b, err := ioutil.ReadFile(path)
-	if err != nil {
-		return "", err
-	}
-	c1 := ConfigV1{}
-	if err := json.Unmarshal(b, &c1); err != nil {
-		return "", err
-	}
-	c12 := ConfigV1V2{}
-	if err := json.Unmarshal(b, &c12); err != nil {
-		return "", err
-	}
-
-	rawBuilder, found := c1["builders"]
-	if !found {
-		// no v1 builders
-		return path, nil
-	}
-
-	var tn []Type
-	if err := json.Unmarshal([]byte(rawBuilder), &tn); err != nil {
-		return "", err
-	}
-	var rawbuilders []json.RawMessage
-	if err := json.Unmarshal([]byte(rawBuilder), &rawbuilders); err != nil {
-		return "", err
-	}
-
-	var typePPs []PostProcessor
-	var rawPPs []json.RawMessage
-	if rawPP := c1["post-processors"]; len(rawPP) != 0 {
-		if err := json.Unmarshal([]byte(rawPP), &typePPs); err != nil {
-			return "", err
-		}
-		if err := json.Unmarshal([]byte(rawPP), &rawPPs); err != nil {
-			return "", err
-		}
-	}
-
-	for n, tn := range tn {
-		builderName := tn.Type
-		if tn.Name != "" {
-			builderName = tn.Name
-		}
-
-		if c12.Artifact[tn.Type] == nil {
-			c12.Artifact[tn.Type] = map[string]json.RawMessage{}
-		}
-
-		name := tn.Name
-		if name == "" {
-			name = fmt.Sprintf("autotranslated-builder-%d", len(c12.Artifact[tn.Type]))
-		}
-		if _, exists := c12.Artifact[tn.Type][name]; exists {
-			return "", fmt.Errorf("%s-%s is defined in old and new config", tn.Type, name)
-		}
-		rawbuilder := rawbuilders[n]
-		rawbuilder = removeKey(rawbuilder, "name", "only", "type")
-		c12.Artifact[tn.Type][name] = rawbuilder
-
-		for n, pp := range typePPs {
-			skip := false
-			for _, except := range pp.Except {
-				if except == builderName {
-					skip = true
-					break
-				}
-			}
-			for _, only := range pp.Only {
-				if only != builderName {
-					skip = true
-					break
-				}
-			}
-			if skip {
-				continue
-			}
-			if c12.Artifact[pp.Type] == nil {
-				c12.Artifact[pp.Type] = map[string]json.RawMessage{}
-			}
-			name := fmt.Sprintf("autotranslated-post-processor-%d", len(c12.Artifact[pp.Type]))
-			if _, exists := c12.Artifact[tn.Type][name]; exists {
-				return "", fmt.Errorf("%s-%s is defined in old and new config", tn.Type, name)
-			}
-			rawpp := rawPPs[n]
-			rawpp = rawpp[:len(rawpp)-1]
-			rawpp = append(rawpp, json.RawMessage(`,"source":"$artifacts.`+tn.Type+`.`+builderName+`"}`)...)
-			rawpp = removeKey(rawpp, "name", "only", "type")
-			c12.Artifact[pp.Type][name] = rawpp
-
-			log.Printf("%s", rawpp)
-		}
-
-	}
-
-	path = strings.TrimSuffix(path, ".json")
-	path = strings.TrimSuffix(path, ".pk")
-	path = path + ".v2.pk.json"
-
-	file, err := os.Create(path)
-	if err != nil {
-		return "", err
-	}
-	defer file.Close()
-
-	enc := json.NewEncoder(file)
-	enc.SetIndent("", "  ")
-
-	return path, enc.Encode(c12)
-}
-
-func removeKey(in json.RawMessage, keys ...string) json.RawMessage {
-	m := map[string]json.RawMessage{}
-	if err := json.Unmarshal(in, &m); err != nil {
-		panic(err)
-	}
-
-	for _, key := range keys {
-		delete(m, key)
-	}
-
-	b, err := json.Marshal(m)
-	if err != nil {
-		panic(err)
-	}
-	return b
-}