xkb: disable xkb key repeats (temporarily)

Haven't quite figured out yet how to make these repeats work. Because we share
the class between devices, the key state is already set when we process the
master device's event, causing a repeat on each event.

xkb/xkbPrKeyEv.c

@@ -76,6 +76,7 @@ int             xiEvent;
     if ((behavior.type&XkbKB_Permanent)==0) {
 	switch (behavior.type) {
 	    case XkbKB_Default:
+#if 0
 		if (( xE->u.u.type == KeyPress || 
                             xE->u.u.type == DeviceKeyPress) && 
 		    (keyc->down[key>>3] & (1<<(key&7)))) {
@@ -112,6 +113,7 @@ int             xiEvent;
 		    XkbLastRepeatEvent= NULL;
 		    return;
 		}
+#endif
 		break;
 	    case XkbKB_Lock:
 		if ( xE->u.u.type == KeyRelease ||