do not clear theora_info twice

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
(cherry picked from commit a077fb25)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/codec/theora.c

@@ -699,7 +699,6 @@ static int OpenEncoder( vlc_object_t *p_this )
     p_sys->ti.noise_sensitivity = 1;
 
     theora_encode_init( &p_sys->td, &p_sys->ti );
-    theora_info_clear( &p_sys->ti );
     theora_comment_init( &p_sys->tc );
 
     /* Create and store headers */