Revert "Parse headers from template"

This reverts commit 31e3e9f56e.

widgets/compose.go

@@ -179,7 +179,8 @@ func (c *Composer) AddTemplate(template string, data interface{}) error {
 	if err != nil {
 		return err
 	}
-	return c.addTemplate(bytes.NewReader(templateText))
+	c.PrependContents(bytes.NewReader(templateText))
+	return nil
 }
 
 func (c *Composer) AddTemplateFromString(template string, data interface{}) error {
@@ -191,44 +192,7 @@ func (c *Composer) AddTemplateFromString(template string, data interface{}) erro
 	if err != nil {
 		return err
 	}
-	return c.addTemplate(bytes.NewReader(templateText))
+	c.PrependContents(bytes.NewReader(templateText))
-}
-
-func (c *Composer) addTemplate(tmpl io.Reader) error {
-	reader, err := mail.CreateReader(tmpl)
-	if err != nil {
-		return errors.Wrap(err, "mail.CreateReader")
-	}
-	defer reader.Close()
-
-	// populate header editors
-	header := reader.Header
-	mhdr := (*message.Header)(&header.Header)
-	for _, editor := range c.editors {
-		if mhdr.Has(editor.name) {
-			editor.input.Set(mhdr.Get(editor.name))
-			mhdr.Del(editor.name)
-		}
-	}
-
-	part, err := reader.NextPart()
-	if err != nil {
-		return errors.Wrap(err, "reader.NextPart")
-	}
-	c.PrependContents(part.Body)
-
-	var (
-		headers string
-		fds     = mhdr.Fields()
-	)
-	for fds.Next() {
-		headers += fmt.Sprintf("%s: %s\n", fds.Key(), fds.Value())
-	}
-	if headers != "" {
-		headers += "\n"
-	}
-
-	c.PrependContents(bytes.NewReader([]byte(headers)))
 	return nil
 }