[vte/wip/sixels] terminal: Remove leftover code from old sixel patch

[Hans Petter Jansson <hansp src gnome org>]

commit 73d90f7a29a32397e2e7a2f1279816baba63b8cf
Author: Hans Petter Jansson <hpj cl no>
Date:   Fri Jun 26 18:03:41 2020 +0200

    terminal: Remove leftover code from old sixel patch

 src/vteseq.cc | 54 ------------------------------------------------------
 1 file changed, 54 deletions(-)
---
diff --git a/src/vteseq.cc b/src/vteseq.cc
index 51bb3732..8552d0a8 100644
--- a/src/vteseq.cc
+++ b/src/vteseq.cc
@@ -8874,59 +8874,5 @@ Terminal::XTERM_WM(vte::parser::Sequence const& seq)
         }
 }
 
-#if 0
-/* FIXME-hpj */
-
-/* graphics attributes */
-static void
-vte_sequence_handler_graphics_attributes(VteTerminalPrivate *that, GValueArray *params)
-{
-       if (params == NULL || params->n_values != 3) {
-               return;
-       }
-       GValue* value = g_value_array_get_nth(params, 0);
-       if (!G_VALUE_HOLDS_LONG(value)) {
-               return;
-       }
-       auto param = g_value_get_long(value);
-
-       char buf[128];
-       long arg1, arg2;
-       arg1 = arg2 = -1;
-       if (params->n_values > 1) {
-               value = g_value_array_get_nth(params, 1);
-               if (G_VALUE_HOLDS_LONG(value)) {
-                       arg1 = g_value_get_long(value);
-               }
-       }
-       if (params->n_values > 2) {
-               value = g_value_array_get_nth(params, 2);
-               if (G_VALUE_HOLDS_LONG(value)) {
-                       arg2 = g_value_get_long(value);
-               }
-       }
-
-       switch (arg1) {
-       case 1:
-               switch (arg2) {
-               case 1:
-                       that->feed_child(_VTE_CAP_CSI "?1;0;256S", -1);
-                       break;
-               case 2:
-                       that->feed_child(_VTE_CAP_CSI "?1;0;256S", -1);
-                       break;
-               case 3:
-                       that->feed_child(_VTE_CAP_CSI "?1;3;0S", -1);
-                       break;
-               default:
-                       break;
-               }
-       default:
-                g_snprintf(buf, sizeof(buf), _VTE_CAP_CSI "?%ld;1;0S", arg1);
-               break;
-       }
-}
-#endif
-
 } // namespace terminal
 } // namespace vte