Revert "No need to show service probes in the module list"

This reverts commit b2ee1bcf.
This is an ugly and confusing hack.

src/libvlc.c

@@ -1928,9 +1928,6 @@ static void ListModules( libvlc_int_t *p_this, bool b_verbose )
 
     /* Enumerate each module */
     for (size_t j = 0; (p_parser = list[j]) != NULL; j++)
-    {
-        if( !( p_parser->psz_capability &&
-            !strcmp( p_parser->psz_capability, "services probe" ) ) )
     {
         if( b_color )
             utf8_fprintf( stdout, GREEN"  %-22s "WHITE"%s\n"GRAY,
@@ -1970,7 +1967,6 @@ static void ListModules( libvlc_int_t *p_this, bool b_verbose )
             }
         }
     }
-    }
     module_list_free (list);
 
 #ifdef WIN32        /* Pause the console because it's destroyed when we exit */