pls: remove write-only value

modules/demux/playlist/pls.c

@@ -78,7 +78,6 @@ void Close_PLS( vlc_object_t *p_this )
 
 static int Demux( demux_t *p_demux )
 {
-    mtime_t        i_duration = -1;
     char          *psz_name = NULL;
     char          *psz_line;
     char          *psz_mrl = NULL;
@@ -154,7 +153,6 @@ static int Demux( demux_t *p_demux )
             }
             free( psz_name );
             psz_name = NULL;
-            i_duration = -1;
             i_item = i_new_item;
         }
 
@@ -177,13 +175,7 @@ static int Demux( demux_t *p_demux )
             psz_name = strdup( psz_value );
         }
         else if( !strncasecmp( psz_key, "length", sizeof("length") -1 ) )
-        {
-            i_duration = atoll( psz_value );
-            if( i_duration != -1 )
-            {
-                i_duration *= 1000000;
-            }
-        }
+            /* duration in seconds */;
         else
         {
             msg_Warn( p_demux, "unknown key found in pls file: %s", psz_key );