psychedelic: remove dead code

The fmt_out will be a shallow copy of p_filter->fmt_out.video
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/video_filter/psychedelic.c

@@ -143,8 +143,6 @@ static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
 
     picture_t *p_converted;
     video_format_t fmt_out;
-    memset( &fmt_out, 0, sizeof(video_format_t) );
-    fmt_out.p_palette = NULL;
 
     if( !p_pic ) return NULL;