diff --git a/apps/calendar/ajax/daysofweekend.php b/apps/calendar/ajax/daysofweekend.php
deleted file mode 100755
index 606d13b1e1..0000000000
--- a/apps/calendar/ajax/daysofweekend.php
+++ /dev/null
@@ -1,11 +0,0 @@
-<?php
-/**
- * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- * See the COPYING-README file.
- */
-require_once('../../../lib/base.php');
-OC_JSON::checkLoggedIn();
-echo OC_Preferences::getValue( OC_User::getUser(), 'calendar', 'weekend', '{"Monday":"false","Tuesday":"false","Wednesday":"false","Thursday":"false","Friday":"false","Saturday":"true","Sunday":"true"}');
-?> 
diff --git a/apps/calendar/ajax/duration.php b/apps/calendar/ajax/duration.php
deleted file mode 100644
index cdc41388ab..0000000000
--- a/apps/calendar/ajax/duration.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-/**
- * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- * See the COPYING-README file.
- */
-require_once('../../../lib/base.php');
-OC_JSON::checkLoggedIn();
-$duration = OC_Preferences::getValue( OC_User::getUser(), 'calendar', 'duration', "60");
-OC_JSON::encodedPrint(array("duration" => $duration));
-?> 
diff --git a/apps/calendar/ajax/firstdayofweek.php b/apps/calendar/ajax/firstdayofweek.php
deleted file mode 100755
index eff82cece1..0000000000
--- a/apps/calendar/ajax/firstdayofweek.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-/**
- * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- * See the COPYING-README file.
- */
-require_once('../../../lib/base.php');
-OC_JSON::checkLoggedIn();
-$firstdayofweek = OC_Preferences::getValue( OC_User::getUser(), 'calendar', 'firstdayofweek', "1");
-OC_JSON::encodedPrint(array("firstdayofweek" => $firstdayofweek));
-?>
\ No newline at end of file
diff --git a/apps/calendar/ajax/setdaysofweekend.php b/apps/calendar/ajax/setdaysofweekend.php
deleted file mode 100755
index b5ef5f8573..0000000000
--- a/apps/calendar/ajax/setdaysofweekend.php
+++ /dev/null
@@ -1,30 +0,0 @@
-<?php
-/**
- * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- * See the COPYING-README file.
- */
-require_once('../../../lib/base.php');
-OC_JSON::checkLoggedIn();
-$weekenddays = array("Monday"=>"false", "Tuesday"=>"false", "Wednesday"=>"false", "Thursday"=>"false", "Friday"=>"false", "Saturday"=>"false", "Sunday"=>"false");
-for($i = 0;$i < count($_POST["weekend"]); $i++){
-	switch ($_POST["weekend"][$i]){
-		case "Monday":
-		case "Tuesday":
-		case "Wednesday":
-		case "Thursday":
-		case "Friday":
-		case "Saturday":
-		case "Sunday":
-			break;
-		default:
-			OC_JSON::error();
-			exit;
-	}
-	$weekenddays[$_POST["weekend"][$i]] = "true";	
-}
-$setValue = json_encode($weekenddays);
-OC_Preferences::setValue(OC_User::getUser(), 'calendar', 'weekend', $setValue);
-OC_JSON::success();
-?> 
diff --git a/apps/calendar/ajax/setduration.php b/apps/calendar/ajax/setduration.php
deleted file mode 100644
index a75c8faea4..0000000000
--- a/apps/calendar/ajax/setduration.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-/**
- * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- * See the COPYING-README file.
- */
-require_once('../../../lib/base.php');
-OC_JSON::checkLoggedIn();
-if(isset($_POST["duration"])){
-	OC_Preferences::setValue(OC_User::getUser(), 'calendar', 'duration', $_POST["duration"]);
-	OC_JSON::success();
-}else{
-	OC_JSON::error();
-}
-?> 
- 
diff --git a/apps/calendar/ajax/setfirstdayofweek.php b/apps/calendar/ajax/setfirstdayofweek.php
deleted file mode 100755
index 571b95af0e..0000000000
--- a/apps/calendar/ajax/setfirstdayofweek.php
+++ /dev/null
@@ -1,16 +0,0 @@
-<?php
-/**
- * Copyright (c) 2011 Georg Ehrke <ownclouddev at georgswebsite dot de>
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- * See the COPYING-README file.
- */
-require_once('../../../lib/base.php');
-OC_JSON::checkLoggedIn();
-if(isset($_POST["firstdayofweek"])){
-	OC_Preferences::setValue(OC_User::getUser(), 'calendar', 'firstdayofweek', $_POST["firstdayofweek"]);
-	OC_JSON::success();
-}else{
-	OC_JSON::error();
-}
-?>