remove justified button groups

docs/components/button-group.md

@@ -13,7 +13,6 @@ Group a series of buttons together on a single line with the button group. Add o
 <div class="bs-callout bs-callout-warning">
   <h4>Ensure correct <code>role</code> and provide a label</h4>
   <p>In order for assistive technologies – such as screen readers – to convey that a series of buttons is grouped, an appropriate <code>role</code> attribute needs to be provided. For button groups, this would be <code>role="group"</code>, while toolbars should have a <code>role="toolbar"</code>.</p>
-  <p>One exception are groups which only contain a single control (for instance the <a href="#btn-groups-justified">justified button groups</a> with <code>&lt;button&gt;</code> elements) or a dropdown.</p>
   <p>In addition, groups and toolbars should be given an explicit label, as most assistive technologies will otherwise not announce them, despite the presence of the correct <code>role</code> attribute. In the examples provided here, we use <code>aria-label</code>, but alternatives such as <code>aria-labelledby</code> can also be used.</p>
 </div>
 
@@ -164,68 +163,3 @@ Make a set of buttons appear vertically stacked rather than horizontally. **Spli
   ...
 </div>
 {% endhighlight %}
-
-### Justified button groups
-
-Make a group of buttons stretch at equal sizes to span the entire width of its parent. Also works with button dropdowns within the button group.
-
-<div class="bs-callout bs-callout-warning">
-  <h4>Handling borders</h4>
-  <p>Due to the specific HTML and CSS used to justify buttons (namely <code>display: table-cell</code>), the borders between them are doubled. In regular button groups, <code>margin-left: -1px</code> is used to stack the borders instead of removing them. However, <code>margin</code> doesn't work with <code>display: table-cell</code>. As a result, depending on your customizations to Bootstrap, you may wish to remove or re-color the borders.</p>
-</div>
-
-#### With `<a>` elements
-
-Just wrap a series of `.btn`s in `.btn-group.btn-group-justified`.
-
-{% example html %}
-<div class="bs-example">
-  <div class="btn-group btn-group-justified" role="group" aria-label="Justified button group">
-    <a class="btn btn-secondary" href="#" role="button">Left</a>
-    <a class="btn btn-secondary" href="#" role="button">Middle</a>
-    <a class="btn btn-secondary" href="#" role="button">Right</a>
-  </div>
-  <br>
-  <div class="btn-group btn-group-justified" role="group" aria-label="Justified button group with nested dropdown">
-    <a class="btn btn-secondary" href="#" role="button">Left</a>
-    <a class="btn btn-secondary" href="#" role="button">Middle</a>
-    <div class="btn-group" role="group">
-      <a class="btn btn-secondary dropdown-toggle" href="#" data-toggle="dropdown"role="button" aria-expanded="false">
-        Dropdown
-      </a>
-      <ul class="dropdown-menu" role="menu">
-        <li><a href="#">Action</a></li>
-        <li><a href="#">Another action</a></li>
-        <li><a href="#">Something else here</a></li>
-        <li class="divider"></li>
-        <li><a href="#">Separated link</a></li>
-      </ul>
-    </div>
-  </div>
-</div>
-{% endexample %}
-
-<div class="bs-callout bs-callout-warning">
-  <h4>Links acting as buttons</h4>
-  <p>If the <code>&lt;a&gt;</code> elements are used to act as buttons – triggering in-page functionality, rather than navigating to another document or section within the current page – they should also be given an appropriate <code>role="button"</code>.</p>
-</div>
-
-#### With `<button>` elements
-
-To use justified button groups with `<button>` elements, **you must wrap each button in a button group**. Most browsers don't properly apply our CSS for justification to `<button>` elements, but since we support button dropdowns, we can work around that.
-
-{% example html %}
-<div class="bs-example">
-  <div class="btn-group btn-group-justified" role="group" aria-label="Justified button group">
-    <div class="btn-group" role="group">
-      <button type="button" class="btn btn-secondary">Left</button>
-    </div>
-    <div class="btn-group" role="group">
-      <button type="button" class="btn btn-secondary">Middle</button>
-    </div>
-    <div class="btn-group" role="group">
-      <button type="button" class="btn btn-secondary">Right</button>
-    </div>
-  </div>
-</div>
-{% endexample %}

scss/_button-group.scss

@@ -201,32 +201,6 @@
 }
 
 
-// Justified button groups
-// ----------------------
-
-.btn-group-justified {
-  display: table;
-  width: 100%;
-  table-layout: fixed;
-  border-collapse: separate;
-
-  > .btn,
-  > .btn-group {
-    display: table-cell;
-    float: none;
-    width: 1%;
-  }
-
-  > .btn-group .btn {
-    width: 100%;
-  }
-
-  > .btn-group .dropdown-menu {
-    left: auto;
-  }
-}
-
-
 // Checkbox and radio options
 //
 // In order to support the browser's form validation feedback, powered by the