fix build / rm diff

Author: Olivier Chafik

common/common.cpp

@@ -1872,8 +1872,8 @@ std::string common_chat_format_example(const common_chat_template & tmpl, bool u
 common_chat_templates common_chat_templates_from_model(const struct llama_model * model, const std::string & chat_template_override)
 {
     auto vocab = llama_model_get_vocab(model);
-    std::string default_template_src = chat_template_override == "chatml" ? CHATML_TEMPLATE_SRC : chat_template_override;
-    std::string template_tool_use_src = chat_template_override == "chatml" ? CHATML_TEMPLATE_SRC : "";
+    std::string default_template_src = chat_template_override;
+    std::string template_tool_use_src = chat_template_override;
     bool has_explicit_template = !chat_template_override.empty();
     if (chat_template_override.empty()) {
         auto str = llama_model_chat_template(model, /* name */ nullptr);