transcode: handle fps conversion in one point

We might not have proper framerate info yet at this point

modules/stream_out/transcode/video.c

@@ -232,8 +232,6 @@ int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_sys_t *id )
           ? id->p_encoder->fmt_out.video.i_visible_height
           : id->p_decoder->fmt_in.video.i_visible_height
             ? id->p_decoder->fmt_in.video.i_visible_height : id->p_encoder->fmt_in.video.i_height;
-    id->p_encoder->fmt_in.video.i_frame_rate = id->p_decoder->fmt_out.video.i_frame_rate;
-    id->p_encoder->fmt_in.video.i_frame_rate_base = id->p_decoder->fmt_out.video.i_frame_rate_base;
 
     id->p_encoder->i_threads = p_sys->i_threads;
     id->p_encoder->p_cfg = p_sys->p_video_cfg;