remove unneeded headings

plugins/af_psql_trgm/init.php

@@ -159,8 +159,6 @@ class Af_Psql_Trgm extends Plugin {
 
 			print \Controls\pluginhandler_tags($this, "save");
 
-			print "<h2>" . __("Global settings") . "</h2>";
-
 			print_notice("Enable for specific feeds in the feed editor.");
 
 			print "<fieldset>";

plugins/af_readability/init.php

@@ -61,8 +61,6 @@ class Af_Readability extends Plugin {
 		<div dojoType='dijit.layout.AccordionPane'
 			title="<i class='material-icons'>extension</i> <?= __('Readability settings (af_readability)') ?>">
 
-			<h2><?= __("Global settings") ?></h2>
-
 			<?= format_notice("Enable for specific feeds in the feed editor.") ?>
 
 			<form dojoType='dijit.form.Form'>