mplayer, stream_tv: move variable initialization

It's not clear why that was done in mplayer's main function.

mplayer.c

@@ -3491,10 +3491,6 @@ int main(int argc, char *argv[])
     set_path_env();
 #endif
 
-#ifdef CONFIG_TV
-    stream_tv_defaults.immediate = 1;
-#endif
-
     parse_cfgfiles(mpctx, mpctx->mconfig);
 
     mpctx->playlist = talloc_struct(mpctx, struct playlist, {0});

stream/stream_tv.c

@@ -49,7 +49,7 @@ tv_param_t stream_tv_defaults = {
     -1.0,          //fps
     NULL,          //channels
     0,             //noaudio;
-    0,             //immediate;
+    1,             //immediate;
     44100,         //audiorate;
     0,             //audio_id
     -1,            //amode