diff --git a/cocos2d/core/platform/CCConfig.js b/cocos2d/core/platform/CCConfig.js
index 027bede099..920ef69528 100644
--- a/cocos2d/core/platform/CCConfig.js
+++ b/cocos2d/core/platform/CCConfig.js
@@ -165,23 +165,6 @@ cc.TEXTURE_ATLAS_USE_VAO = 0;
  */
 cc.TEXTURE_NPOT_SUPPORT = 0;
 
-/**
- * <p>
- *    If enabled, cocos2d supports retina display.<br/>
- *    For performance reasons, it's recommended disable it in games without retina display support, like iPad only games.<br/>
- *    <br/>
- *    To enable set it to 1. Use 0 to disable it. Enabled by default.<br/>
- *    <br/>
- *    This value governs only the PNG, GIF, BMP, images.<br/>
- *    This value DOES NOT govern the PVR (PVR.GZ, PVR.CCZ) files. If NPOT PVR is loaded, then it will create an NPOT texture ignoring this value.<br/>
- *    To modify it, in Web engine please refer to CCConfig.js, in JSB please refer to CCConfig.h
- * </p>
- * @constant
- * @type {Number}
- * @deprecated This value will be removed in 1.1 and NPOT textures will be loaded by default if the device supports it.
- */
-cc.RETINA_DISPLAY_SUPPORT = 1;
-
 /**
  * <p>
  *    It's the suffix that will be appended to the files in order to load "retina display" images.<br/>
@@ -262,13 +245,6 @@ cc.LABELATLAS_DEBUG_DRAW = 0;
 
 cc.DRAWNODE_TOTAL_VERTICES = 20000;
 
-/**
- * Whether or not support retina display
- * @constant
- * @type {Number}
- */
-cc.IS_RETINA_DISPLAY_SUPPORTED = 0;
-
 /**
  * Default engine
  * @constant
diff --git a/cocos2d/core/platform/CCMacro.js b/cocos2d/core/platform/CCMacro.js
index 8ee902585b..a89331c9f1 100644
--- a/cocos2d/core/platform/CCMacro.js
+++ b/cocos2d/core/platform/CCMacro.js
@@ -244,10 +244,8 @@ cc.FLT_EPSILON = 0.0000001192092896;
  * @return {Number}
  * @function
  */
-cc.contentScaleFactor = cc.IS_RETINA_DISPLAY_SUPPORTED ? function () {
+cc.contentScaleFactor = function () {
     return cc.director._contentScaleFactor;
-} : function () {
-    return 1;
 };
 
 /**
@@ -312,12 +310,10 @@ cc._sizePixelsToPointsOut = function (sizeInPixels, outSize) {
  * @return {cc.Rect}
  * @function
  */
-cc.rectPixelsToPoints = cc.IS_RETINA_DISPLAY_SUPPORTED ? function (pixel) {
+cc.rectPixelsToPoints = function (pixel) {
     var scale = cc.contentScaleFactor();
     return cc.rect(pixel.x / scale, pixel.y / scale,
         pixel.width / scale, pixel.height / scale);
-} : function (p) {
-    return p;
 };
 
 /**
@@ -326,12 +322,10 @@ cc.rectPixelsToPoints = cc.IS_RETINA_DISPLAY_SUPPORTED ? function (pixel) {
  * @return {cc.Rect}
  * @function
  */
-cc.rectPointsToPixels = cc.IS_RETINA_DISPLAY_SUPPORTED ? function (point) {
+cc.rectPointsToPixels = function (point) {
    var scale = cc.contentScaleFactor();
     return cc.rect(point.x * scale, point.y * scale,
         point.width * scale, point.height * scale);
-} : function (p) {
-    return p;
 };
 
 //some gl constant variable