add migrate from issue.label_ids to issue_label

templates/base/head_old.tmpl

@@ -28,8 +28,6 @@
 		{{end}}
 
 		<link href="{{AppSubUrl}}/css/todc-bootstrap.min.css" rel="stylesheet" />
-        <link href="{{AppSubUrl}}/css/datepicker3.css" rel="stylesheet" />
-        <link href="{{AppSubUrl}}/css/bootstrap-colorpicker.min.css" rel="stylesheet" />
 		<link href="{{AppSubUrl}}/css/markdown.css" rel="stylesheet" />
 		<link href="{{AppSubUrl}}/css/gogs.css" rel="stylesheet" />