Revert default value for subnet

setup/templates/steps/stack/03_expose.html

@@ -5,8 +5,7 @@ you expose it to the world.</p>
 
 <div class="form-group">
   <label>Subnet</label>
-  <input class="form-control" type="text" name="subnet" required pattern="^([0-9]{1,3}\.){3}[0-9]{1,3}(\/([0-9]|[1-2][0-9]|3[0-2]))$"
-  		value="10.0.1.0/24">
+  <input class="form-control" type="text" name="subnet" required pattern="^([0-9]{1,3}\.){3}[0-9]{1,3}(\/([0-9]|[1-2][0-9]|3[0-2]))$">
 </div>
 
 <p>You server will be available under a main hostname but may expose multiple public