Remove problematic X11 defines

ThirdParty/X11/Include/X11/X.h

@@ -111,10 +111,6 @@ typedef unsigned char KeyCode;
  * RESERVED RESOURCE AND CONSTANT DEFINITIONS
  *****************************************************************/
 
-#ifndef None
-#define None                 0L	/* universal null resource or null atom */
-#endif
-
 #define ParentRelative       1L	/* background pixmap in CreateWindow
 				    and ChangeWindowAttributes */
 
@@ -136,8 +132,6 @@ typedef unsigned char KeyCode;
 
 #define AllTemporary         0L	/* special Resource ID passed to KillClient */
 
-#define CurrentTime          0L	/* special Time */
-
 #define NoSymbol	     0L	/* special KeySym */
 
 /*****************************************************************