Index: src/bp-templates/bp-legacy/buddypress/activity/index.php
===================================================================
--- src/bp-templates/bp-legacy/buddypress/activity/index.php	(revision 9895)
+++ src/bp-templates/bp-legacy/buddypress/activity/index.php	(working copy)
@@ -172,7 +172,7 @@
 	 */
 	do_action( 'bp_before_directory_activity_list' ); ?>
 
-	<div class="activity" role="main">
+	<div class="activity">
 
 		<?php bp_get_template_part( 'activity/activity-loop' ); ?>
 
Index: src/bp-templates/bp-legacy/buddypress/activity/single/home.php
===================================================================
--- src/bp-templates/bp-legacy/buddypress/activity/single/home.php	(revision 9895)
+++ src/bp-templates/bp-legacy/buddypress/activity/single/home.php	(working copy)
@@ -4,7 +4,7 @@
 	/** This action is documented in bp-templates/bp-legacy/buddypress/activity/index.php */
 	do_action( 'template_notices' ); ?>
 
-	<div class="activity no-ajax" role="main">
+	<div class="activity no-ajax">
 		<?php if ( bp_has_activities( 'display_comments=threaded&show_hidden=true&include=' . bp_current_action() ) ) : ?>
 
 			<ul id="activity-stream" class="activity-list item-list">