remove old debug x11 code

src/screen.c

@@ -1,5 +1,4 @@
 #include "screen.h"
-#include <X11/X.h>
 #undef Screen
 
 #include <math.h>
@@ -10,6 +9,7 @@
 #include <sys/select.h>
 
 #define XLIB_ILLEGAL_ACCESS
+#include <X11/X.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 
@@ -38,10 +38,6 @@ static void init_x() {
         exit(EXIT_FAILURE);
     }
 
-#ifdef DEBUG
-    XSynchronize(dpy, True);
-#endif
-
     scr = DefaultScreen(dpy);
     root = RootWindow(dpy, scr);