Revert "Little improvment for repainting"

Revert the timer based redraw prevention, because we want to
take a new approach based on an idle worker.

This reverts commit 99a44dd.

xwin.c

@@ -35,8 +35,6 @@
 #include <stdlib.h> /* for exit() */
 #endif
 
-#include <sys/time.h>
-
 /*
  * IMPORTS: routines that this module vectors out to 
  */
@@ -69,11 +67,6 @@ extern void xdrawrect();
  */
 static void help_popup();
 static void help_popdown();
-static struct timeval last_repaint;
-static long int timediff(struct timeval* t1, struct timeval* t2)
-{
-    return 1000000 * (t2->tv_sec - t1->tv_sec) + t2->tv_usec - t1->tv_usec;
-}
 
 static String fallback_resources[] = {
     "*window.width:		600",
@@ -345,20 +338,10 @@ static void
 c_resize(Widget w, XtPointer data, XEvent* event, Boolean* continue_to_dispatch)
 {
     UNUSED(w, data, event, continue_to_dispatch);
-     /*
-      * printf("Resize\n"); 
-      */
-    long int diff;
-    struct timeval t;
-
-    gettimeofday(&t, NULL);
-    diff = timediff(&last_repaint, &t);
-
-    if (diff < (long int)50000)
-        return;
+    /*
+     * printf("Resize\n"); 
+     */
     xrepaint();
-
-    gettimeofday(&last_repaint, NULL);
 }
 
 static void
@@ -368,14 +351,6 @@ c_repaint(Widget w, XtPointer data, XEvent* event, Boolean* continue_to_dispatch
     /*
      * printf("Expose\n"); 
      */
-    long int diff;
-    struct timeval t;
-
-    gettimeofday(&t, NULL);
-    diff = timediff(&last_repaint, &t);
-
-    if (diff < (long int)50000)
-        return;
     xrepaint_noclear();
 }