Remove featherlight plugin

As it is unnecessary and can break image tags

docs/_template/light-dark-theme/partials/scripts.tmpl.partial

@@ -3,8 +3,6 @@
 <script type="text/javascript" src="{{_rel}}styles/docfx.vendor.js"></script>
 <script type="text/javascript" src="{{_rel}}styles/docfx.js"></script>
 <script type="text/javascript" src="{{_rel}}styles/main.js"></script>
-<script type="text/javascript" src="https://cdn.rawgit.com/noelboss/featherlight/master/release/featherlight.min.js" charset="utf-8"></script>
-<script type="text/javascript" src="{{_rel}}styles/plugin-featherlight.js"></script>
 <script type="text/javascript" src="{{_rel}}styles/styleswitcher.js"></script>
 <script type="text/javascript" src="https://malsup.github.io/jquery.corner.js"></script>
 <script type="text/javascript" src="{{_rel}}styles/cornerify.js"></script>

docs/_template/light-dark-theme/styles/plugin-featherlight.js

@@ -1,37 +0,0 @@
-// MIT License
-
-// Copyright (c) 2017 Roel Fauconnier
-
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-$(document).ready(function() {
-        //find all images, but not the logo, and add the lightbox
-        $('img').not('#logo').each(function(){
-            var $img = $(this);
-            var filename = $img.attr('src')
-            //add cursor
-            $img.css('cursor','zoom-in');
-            $img.css('cursor','-moz-zoom-in');
-            $img.css('cursor','-webkit-zoom-in');
-
-            //add featherlight
-            $img.attr('alt', filename);
-            $img.featherlight(filename);
-    });
-});