demux: process filters in usual order

There are no obvious reasons to process the demux filter chain in
reverse order. All other chains are processed from upstream to
downstream.

As there was typically only zero or one filter(s), it won´t matter
much for the time being.

src/input/demux.c

@@ -610,9 +610,6 @@ demux_t *demux_FilterChainNew( demux_t *p_demux, const char *psz_chain )
     if(!psz_parser)
         return NULL;
 
-    vlc_array_t name;
-    vlc_array_init(&name);
-
     /* parse chain */
     while(psz_parser)
     {
@@ -622,22 +619,13 @@ demux_t *demux_FilterChainNew( demux_t *p_demux, const char *psz_chain )
         free( psz_parser );
         psz_parser = psz_rest_chain;
 
-        vlc_array_append(&name, psz_name);
-        config_ChainDestroy(p_cfg);
-    }
-
-    size_t i = vlc_array_count(&name);
-    while(i--)
-    {
-        char *p_name = vlc_array_item_at_index(&name, i);
-        demux_t *p_next = demux_FilterNew( p_demux, p_name );
-
-        free( p_name );
+        demux_t *filter = demux_FilterNew(p_demux, psz_name);
+        if (filter != NULL)
+            p_demux = filter;
 
-        p_demux = p_next;
+        free(psz_name);
+        config_ChainDestroy(p_cfg);
     }
 
-    vlc_array_clear(&name);
-
     return p_demux;
 }