bootstrap: Remove bootstrap-dropdown library.

Gear menu was the last piece of dropdowns which used this. Since
we migrated it to tippy, we don't need this library.

web/third/bootstrap/js/bootstrap.js

@@ -58,176 +58,6 @@
   })
 
 }(window.jQuery);
-/* ============================================================
- * bootstrap-dropdown.js v2.3.2
- * http://twitter.github.com/bootstrap/javascript.html#dropdowns
- * ============================================================
- * Copyright 2012 Twitter, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * ============================================================ */
-
-
-!function ($) {
-
-  "use strict"; // jshint ;_;
-
-
- /* DROPDOWN CLASS DEFINITION
-  * ========================= */
-
-  var toggle = '[data-toggle=dropdown]'
-    , Dropdown = function (element) {
-        var $el = $(element).on('click.dropdown.data-api', this.toggle)
-        $('html').on('click.dropdown.data-api', function () {
-          $el.parent().removeClass('open')
-        })
-      }
-
-  Dropdown.prototype = {
-
-    constructor: Dropdown
-
-  , toggle: function (e) {
-      var $this = $(this)
-        , $parent
-        , isActive
-
-      if ($this.is('.disabled, :disabled')) return
-
-      $parent = getParent($this)
-
-      isActive = $parent.hasClass('open')
-
-      clearMenus()
-
-      if (!isActive) {
-        if ('ontouchstart' in document.documentElement) {
-          // if mobile we use a backdrop because click events don't delegate
-          $('<div class="dropdown-backdrop"/>').insertBefore($(this)).on('click', clearMenus)
-        }
-        $parent.toggleClass('open')
-      }
-
-      $this.focus()
-
-      return false
-    }
-
-  , keydown: function (e) {
-      var $this
-        , $items
-        , $active
-        , $parent
-        , isActive
-        , index
-
-      if (!/(38|40|27)/.test(e.keyCode)) return
-
-      $this = $(this)
-
-      e.preventDefault()
-      e.stopPropagation()
-
-      if ($this.is('.disabled, :disabled')) return
-
-      $parent = getParent($this)
-
-      isActive = $parent.hasClass('open')
-
-      if (!isActive || (isActive && e.keyCode == 27)) {
-        if (e.which == 27) $parent.find(toggle).focus()
-        return $this.click()
-      }
-
-      $items = $('[role=menu] li:not(.divider):visible a', $parent)
-
-      if (!$items.length) return
-
-      index = $items.index($items.filter(':focus'))
-
-      if (e.keyCode == 38 && index > 0) index--                                        // up
-      if (e.keyCode == 40 && index < $items.length - 1) index++                        // down
-      if (!~index) index = 0
-
-      $items
-        .eq(index)
-        .focus()
-    }
-
-  }
-
-  function clearMenus() {
-    $('.dropdown-backdrop').remove()
-    $(toggle).each(function () {
-      getParent($(this)).removeClass('open')
-    })
-  }
-
-  function getParent($this) {
-    var selector = $this.attr('data-target')
-      , $parent
-
-    if (!selector) {
-      selector = $this.attr('href')
-      selector = selector && /#/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
-    }
-
-    $parent = selector && $(selector)
-
-    if (!$parent || !$parent.length) $parent = $this.parent()
-
-    return $parent
-  }
-
-
-  /* DROPDOWN PLUGIN DEFINITION
-   * ========================== */
-
-  var old = $.fn.dropdown
-
-  $.fn.dropdown = function (option) {
-    return this.each(function () {
-      var $this = $(this)
-        , data = $this.data('dropdown')
-      if (!data) $this.data('dropdown', (data = new Dropdown(this)))
-      if (typeof option == 'string') data[option].call($this)
-    })
-  }
-
-  $.fn.dropdown.Constructor = Dropdown
-
-
- /* DROPDOWN NO CONFLICT
-  * ==================== */
-
-  $.fn.dropdown.noConflict = function () {
-    $.fn.dropdown = old
-    return this
-  }
-
-
-  /* APPLY TO STANDARD DROPDOWN ELEMENTS
-   * =================================== */
-
-  $(document)
-    .on('click.dropdown.data-api', clearMenus)
-    .on('click.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })
-    .on('click.dropdown.data-api'  , toggle, Dropdown.prototype.toggle)
-    .on('keydown.dropdown.data-api', toggle + ', [role=menu]' , Dropdown.prototype.keydown)
-
-}(window.jQuery);
-
 /* ========================================================
  * bootstrap-tab.js v2.3.2
  * http://twitter.github.com/bootstrap/javascript.html#tabs