Types: remove superfluous empty paragraphs before certain headings

The gap above these two headings feels especially large when reading
on a narrow viewport.

Follows-up df69696 from 2012, when the files were first committed
to Git.

Author: Krinkle

pages/Types.html

@@ -189,8 +189,6 @@ <h3 id="Boolean_Default_2"> Boolean Default </h3>
 </p>
 <pre><code data-lang="javascript">0.1 + 0.2 // 0.30000000000000004
 </code></pre>
-<p><br />
-</p>
 <h3 id="Math"> Math </h3>
 <p>JavaScript provides utilities to work with numbers in the Math object:
 </p>
@@ -249,8 +247,6 @@ <h3 id="Integer"> Integer </h3>
 <h3 id="Float"> Float </h3>
 <p>A float is a plain Number type, just as Integer, but whenever explicitly mentioned, indicates that a floating-point number is expected.
 </p>
-<p><br />
-</p>
 <h2 id="Boolean"> Boolean </h2>
 <p>A boolean in JavaScript can be either true or false:
 </p>