Revert "Updated modules to allow for partial overrides without errors"

This reverts commit db949bb802.

mod/update_display.php

@@ -5,7 +5,6 @@
 require_once('mod/display.php');
 require_once('include/group.php');
 
-if(! function_exists('update_display_content')) {
 function update_display_content(&$a) {
 
 	$profile_uid = intval($_GET['p']);
@@ -35,5 +34,5 @@ function update_display_content(&$a) {
 	echo "</section>";
 	echo "</body></html>\r\n";
 	killme();
-}
+
 }