server : remove old commented code [no ci]

Author: ggerganov

examples/server/server.cpp

@@ -3280,13 +3280,10 @@ struct server_context {
                 }
 
                 // construct the speculation batch
-                //slot.batch_spec.clear();
-                //slot.batch_spec.add_text(id, slot.n_past, slot.id, true);
                 llama_batch_ext_clear(slot.batch_spec.get());
                 llama_batch_ext_add_text(slot.batch_spec.get(), id, slot.n_past, &slot.id, 1, true);
 
                 for (size_t i = 0; i < draft.size(); ++i) {
-                    //slot.batch_spec.add_text(draft[i], slot.n_past + 1 + i, slot.id, true);
                     llama_batch_ext_add_text(slot.batch_spec.get(), draft[i], slot.n_past + 1 + i, &slot.id, 1, true);
                 }