simplify the find out more block

php/blocks/sidebar/find-out-more-vvv.php

@@ -1,15 +1,8 @@
 <div class="box">
 	<h3>Find out more about VVV</h3>
 	<?php
-	if ( file_exists( '/vagrant/version' ) ) {
-		// note that at this time we cannot check for updates to be 100% sure,
-		// that requires a network connection which isn't always present
-		?>
-		<p>You're running VVV <code>v<?php echo trim( strip_tags( file_get_contents( '/vagrant/version' ) ) ); ?></code>, <strong>if</strong> there are updates available you can run <code>git pull</code> and <code>vagrant up --provision</code> to apply them.</p>
-		<?php
-	}
 	$distro_version = exec( 'lsb_release -ds' );
 	?>
-	<p>This VVV instance is inside a <?php echo $distro_version; ?> virtual machine.</p>
+	<p>This VVV instance is inside a <?php echo htmlspecialchars( $distro_version ); ?> virtual machine.</p>
 	<a class="button" href="https://github.com/varying-vagrant-vagrants/vvv/" target="_blank">View the code on GitHub</a>
 </div>