Drop some unhelpful non-normative text about “b” element usage

source

@@ -25091,23 +25091,6 @@ brighter. A &lt;b>rat&lt;/b> scurries past the corner wall.&lt;/p></code></pre>
   style of a particular use is to be changed at a later date, the author doesn't have to go through
   annotating each use.</p>
 
-  <p>The <code>b</code> element should be used as a last resort when no other element is more
-  appropriate. In particular, headings should use the <code>h1</code> to <code>h6</code> elements,
-  stress emphasis should use the <code>em</code> element, importance should be denoted with the
-  <code>strong</code> element, and text marked or highlighted should use the <code>mark</code>
-  element.</p>
-
-  <div class="example">
-
-   <p>The following would be <em>incorrect</em> usage:</p>
-
-   <pre class="bad"><code class="html">&lt;p>&lt;b>WARNING!&lt;/b> Do not frob the barbinator!&lt;/p></code></pre>
-
-   <p>In the previous example, the correct element to use would have been <code>strong</code>, not
-   <code>b</code>.</p>
-
-  </div>
-
   <p class="note">Style sheets can be used to format <code>b</code> elements, just like any other
   element can be restyled. Thus, it is not the case that content in <code>b</code> elements will
   necessarily be boldened.</p>