I am attempting to exclude all sticky posts from my front page in twenty twelve theme. I have attempted the following. I am making all changes to the child theme.

 1. To remove the following code from content.php

        <?php if ( is_sticky() && is_home() && ! is_paged() ) : ?>
		<div class="featured-post">
			<?php _e( 'Featured post', 'twentytwelve' ); ?>
		</div>
		<?php endif; ?>

 2. Add following code to index.php before the loop(this removed sticky posts but broke pagination)

        <?php query_posts( array( 'post__not_in' => get_option( 'sticky_posts' ) ) ); ?>


This is the loop in index.php (pretty much standard index.php for twenty twelve.

   <?php if ( have_posts() ) : ?>


			
			<?php while ( have_posts() ) : the_post(); ?>
				<?php get_template_part( 'content', get_post_format() ); ?>



			<?php endwhile; ?>


			<?php twentytwelve_content_nav( 'nav-below' ); ?>


Could someone please advise me on what I should exactly put into this loop to not show any sticky posts on index.php?

Thank you for your time.