Need help editing some php I found

I found this on the internet and it does everything I want apart from the pagination. I know very little about php so I wondered if some kind soul can help me out. I want to remove all pagination from it completely and keep the rest. Here is the code.

<?php
         $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
         $args = array (
            'posts_per_page' => $posts_per_page,
            'post_type' => 'post',
	    'category_name' => 'anime-reviews',
            'orderby' => 'title',
            'order' => 'ASC',
            'paged' => $paged
         );
         query_posts($args);
         if ( have_posts() ) {
            $in_this_row = 0;
            while ( have_posts() ) {
               the_post();
               $first_letter = strtoupper(substr(apply_filters('the_title',$post->post_title),0,1));
               if ($first_letter != $curr_letter) {
                  if (++$post_count > 1) {
                     end_prev_letter();
                  }
                  start_new_letter($first_letter);
                  $curr_letter = $first_letter;
               }
               if (++$in_this_row > $posts_per_row) {
                  end_prev_row();
                  start_new_row();
                  ++$in_this_row;  // Account for this first post
               } ?>
               <div class="title-cell"><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></div>
            <?php }
            end_prev_letter();
            ?>
            <div class="navigation">
               <div class="alignleft"><?php next_posts_link('&laquo; Higher Letters') ?></div>
               <div class="alignright"><?php previous_posts_link('Lower Letters &raquo;') ?></div>
            </div>
         <?php } else {
            echo "<h2>Sorry, no posts were found!</h2>";
         }
         ?>

And here is the function

function end_prev_letter() {
   end_prev_row();
   echo "</div><!-- End of letter-group -->\n";
   echo "<div class='clear'></div>\n";
}
function start_new_letter($letter) {
   echo "<div class='letter-group'>\n";
   echo "\t<div class='letter-cell'>$letter</div>\n";
   start_new_row($letter);
}
function end_prev_row() {
   echo "\t</div><!-- End row-cells -->\n";
}
function start_new_row() {
   global $in_this_row;
   $in_this_row = 0;
   echo "\t<div class='row-cells'>\n";
}

As I said I need to change this to show the full list of posts without the pagination and keep everything else. Thanks in advance for anyone kind enough to help me out.