Remove unused file and bundle ie-emulation-modes-warning.js with docs.min.js (#24825)

* Remove the unused assets/js/ie10-viewport-bug-workaround.js.

* Combine ie-emulation-modes-warning.js with docs.min.js.

_includes/scripts.html

@@ -16,11 +16,10 @@
   <script src="{{ site.baseurl }}/assets/js/vendor/clipboard.min.js"></script>
   <script src="{{ site.baseurl }}/assets/js/vendor/holder.min.js"></script>
   <script src="{{ site.baseurl }}/assets/js/src/application.js"></script>
+  <script src="{{ site.baseurl }}/assets/js/src/ie-emulation-modes-warning.js"></script>
   <script src="{{ site.baseurl }}/assets/js/src/pwa.js"></script>
 {%- endif -%}
 
-<script src="{{ site.baseurl }}/assets/js/ie-emulation-modes-warning.js"></script>
-
 {%- if page.layout == "docs" -%}
 <script src="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.js"></script>
 <script>

assets/js/ie10-viewport-bug-workaround.js

-/*!
- * IE10 viewport hack for Surface/desktop Windows 8 bug
- * Copyright 2014-2017 The Bootstrap Authors
- * Copyright 2014-2017 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- */
-
-// See the Getting Started docs for more information:
-// https://getbootstrap.com/getting-started/#support-ie10-width
-
-(function () {
-  'use strict'
-
-  if (navigator.userAgent.match(/IEMobile\/10\.0/)) {
-    var msViewportStyle = document.createElement('style')
-    msViewportStyle.appendChild(
-      document.createTextNode(
-        '@-ms-viewport{width:auto!important}'
-      )
-    )
-    document.head.appendChild(msViewportStyle)
-  }
-
-}())

assets/js/ie-emulation-modes-warning.js → assets/js/src/ie-emulation-modes-warning.js

 // NOTICE!! DO NOT USE ANY OF THIS JAVASCRIPT
 // IT'S JUST JUNK FOR OUR DOCS!
 // ++++++++++++++++++++++++++++++++++++++++++
-/*!
- * Copyright 2014-2015 The Bootstrap Authors
- * Copyright 2014-2015 Twitter, Inc.
- *
- * Licensed under the Creative Commons Attribution 3.0 Unported License. For
- * details, see https://creativecommons.org/licenses/by/3.0/.
- */
+
 // Intended to prevent false-positive bug reports about Bootstrap not working properly in old versions of IE due to folks testing using IE's unreliable emulation modes.
 (function () {
   'use strict'

package.json

@@ -41,7 +41,7 @@
     "js-minify": "npm-run-all --parallel js-minify-*",
     "js-minify-standalone": "uglifyjs --compress typeofs=false --mangle --comments \"/^!/\" --source-map \"content=dist/js/bootstrap.js.map,includeSources,url=bootstrap.min.js.map\" --output dist/js/bootstrap.min.js dist/js/bootstrap.js",
     "js-minify-bundle": "uglifyjs --compress typeofs=false --mangle --comments \"/^!/\" --source-map \"content=dist/js/bootstrap.bundle.js.map,includeSources,url=bootstrap.bundle.min.js.map\" --output dist/js/bootstrap.bundle.min.js dist/js/bootstrap.bundle.js",
-    "js-minify-docs": "uglifyjs --mangle --comments \"/^!/\" --output assets/js/docs.min.js assets/js/vendor/anchor.min.js assets/js/vendor/clipboard.min.js assets/js/vendor/holder.min.js assets/js/src/application.js assets/js/src/pwa.js",
+    "js-minify-docs": "uglifyjs --mangle --comments \"/^!/\" --output assets/js/docs.min.js assets/js/vendor/anchor.min.js assets/js/vendor/clipboard.min.js assets/js/vendor/holder.min.js \"assets/js/src/*.js\"",
     "js-test": "phantomjs ./node_modules/qunit-phantomjs-runner/runner.js js/tests/index.html 60",
     "js-test-cloud": "ruby -r webrick -e \"s = WEBrick::HTTPServer.new(:Port => 3000, :DocumentRoot => Dir.pwd, :Logger => WEBrick::Log.new('/dev/null'), :AccessLog => []); trap('INT') { s.shutdown }; s.start\" & node build/saucelabs-unit-test.js",
     "docs": "npm-run-all --parallel css-docs js-docs --sequential docs-compile docs-lint",