Remove PIE content from the Windows installation section (#4781)

Author: sy-records

install/pecl.xml

@@ -121,7 +121,6 @@ $ svn checkout https://svn.php.net/repository/pecl/extname/trunk extname
 
  <sect1 xml:id="install.pecl.windows">
   <title>Installing a PHP extension on Windows</title>
-  &pecl.moving.to.pie;
   <para>
    There are two ways to load a PHP extension on Windows: either compile it into
    PHP, or load the DLL.