administration MDL-21351 revert changes

lib/adminlib.php

@@ -1005,9 +1005,6 @@ class admin_settingpage implements part_of_admin_tree {
     public $path;
     public $visiblepath;
 
-    /** display the save changes button **/
-    public $displaysavebutton;
-
     /**
      * see admin_settingpage for details of this function
      *
@@ -1029,7 +1026,6 @@ class admin_settingpage implements part_of_admin_tree {
         }
         $this->hidden      = $hidden;
         $this->context     = $context;
-        $this->displaysavebutton = true;
     }
 
     /**
@@ -1052,13 +1048,6 @@ class admin_settingpage implements part_of_admin_tree {
         }
     }
 
-    /**
-     * Hide the Save Changes button
-     */
-    public function hidesavebutton() {
-       $this->displaysavebutton = false;
-    }
-
     /**
      * Search string in settings page.
      *