remove imgui_test_engine from editor namespace

src/app/editor/message/message_editor_test.cc

@@ -1,22 +1,7 @@
 #include "message_editor.h"
 
-#include "app/core/testable.h"
-
 namespace yaze {
 namespace app {
-namespace editor {
-
-void MessageEditor::RegisterTests(ImGuiTestEngine* e) {
-  test_engine = e;
-  ImGuiTest* t = nullptr;
-
-  t = IM_REGISTER_TEST(e, "message_editor", "read_all_text_data");
-  t->TestFunc = [](ImGuiTestContext* ctx) {
-    ctx->SetRef("##YazeMain/##TabBar/Message");
-
-  };
-}
-
-}  // namespace editor
+namespace editor {}  // namespace editor
 }  // namespace app
 }  // namespace yaze