directdraw: accept every projection modes

Since this is the last vout in priority (comes after OpenGL), this vout should
accept ever projection modes (even if it won't be displayed correctly).

modules/video_output/win32/directdraw.c

@@ -199,9 +199,6 @@ static int Open(vlc_object_t *object)
     vout_display_t *vd = (vout_display_t *)object;
     vout_display_sys_t *sys;
 
-    if ( !vd->obj.force && vd->source.projection_mode != PROJECTION_MODE_RECTANGULAR)
-        return VLC_EGENERIC; /* let a module who can handle it do it */
-
     /* Allocate structure */
     vd->sys = sys = calloc(1, sizeof(*sys));
     if (!sys)