Wordpress - run php functions if user is subscriber/contributor - php

Question

So I am experimenting and creating my first Wordpress site, and this is my first stack overflow question :)
My end goal is to hide the Personal Options for subscribers/contributors in their profile page. It's just clutter that gets in the way.
I found this code written by someone who had a similar problem, and slightly edited it to make it work for me:
function remove_opt_start($adddiv) {
$gettitle = array('#<h2>Personal Options</h2>#');
$adddiv = preg_replace($gettitle, '<div class="hidden">', $adddiv,1);
return $adddiv;
}
function start_remove_opt_start() { ob_start("remove_opt_start"); }
function end_remove_opt_start() { ob_end_flush(); }
function remove_opt_end($addend) {
$getname = array('#<h2>Name</h2>#');
$addend = preg_replace($getname, '</div><h2>Name</h2>',$addend,1);
return $addend;
}
function start_remove_opt_end() { ob_start("remove_opt_end"); }
function end_remove_opt_end() { ob_end_flush(); }
add_action('admin_head','start_remove_opt_start');
add_action('admin_head','start_remove_opt_end');
add_action('admin_footer','end_remove_opt_start');
add_action('admin_footer','end_remove_opt_end');
?>
And it's great! But it also removes the options for admins, editors, and authors, which I do not want. So I found this code where someone was attempting to distinguish between users:
global $current_user;
get_currentuserinfo();
switch (true) {
case ( user_can( $current_user, "subscriber") ):
// Show Role
// Show Subscriber Image
break;
case ( user_can( $current_user, "contributor") ):
// Show Role
// Show Contributor Image
break;
case ( user_can( $current_user, "administrator") ):
// Show Role
// Show Administrator Image
break;
}
So basically, my question is thus:
How do I have combine the two codes so that the first code block is only called when the second code block detects that a user is a contributor or subscriber.
I was hoping it could be as simple as coping and pasting it inside the commented area, but it never is quite that easy. Unfortunately, I have very little knowledge of php, but I'm excited to learn :)