Remove unused mustache templates

app/views/packages/versions/new.mustache

Index: app/views/packages/versions/new.mustache
diff --git a/app/views/packages/versions/new.mustache b/app/views/packages/versions/new.mustache
deleted file mode 100644
index 2bd4c5d180edbd4a98cebb454abfcc81875918bf..0000000000000000000000000000000000000000
--- a/app/views/packages/versions/new.mustache
+++ /dev/null
@@ -1,12 +0,0 @@
-{{! Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-    for details. All rights reserved. Use of this source code is governed by a
-    BSD-style license that can be found in the LICENSE file. }}
-
-{{#package}}
-  <h3>Adding version to package {{package.name}}</h3>
-{{/package}}
-{{^package}}
-  <h3>Creating a new package</h3>
-{{/package}}
-
-{{{form}}}