drop the low percentages docs from progress bars

docs/_includes/components/progress-bars.html

@@ -42,34 +42,6 @@
 </div>
 {% endhighlight %}
 
-  <h3 id="progress-low-percentages">Low percentages</h3>
-  <p>Progress bars representing low single digit percentages, as well as 0%, include a <code>min-width: 20px;</code> for legibility.</p>
-  <div class="bs-example">
-    <div class="progress">
-      <div class="progress-bar" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100">
-        0%
-      </div>
-    </div>
-    <div class="progress">
-      <div class="progress-bar" role="progressbar" aria-valuenow="2" aria-valuemin="0" aria-valuemax="100" style="width: 2%;">
-        2%
-      </div>
-    </div>
-  </div>
-{% highlight html %}
-<div class="progress">
-  <div class="progress-bar" role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100">
-    0%
-  </div>
-</div>
-<div class="progress">
-  <div class="progress-bar" role="progressbar" aria-valuenow="2" aria-valuemin="0" aria-valuemax="100" style="width: 2%;">
-    2%
-  </div>
-</div>
-{% endhighlight %}
-
-
   <h3 id="progress-alternatives">Contextual alternatives</h3>
   <p>Progress bars use some of the same button and alert classes for consistent styles.</p>
   <div class="bs-example">