Remove cc.RETINA_DISPLAY_SUPPORT deprecated macro.

Author: 1scaR1

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/>