chore: trim duplicated content in ProductController

cfc-backend/src/main/java/com/etotem/cfc/controller/product/ProductController.java

@@ -158,48 +158,4 @@ public class ProductController {
         }
         return Result.success(result);
     }
-}
-                        String name = spec.get("name");
-                        String value = spec.get("value");
-                        if (name == null || value == null) continue;
-
-                        if (!nameToGroupId.containsKey(name)) {
-                            nameToGroupId.put(name, groupId++);
-                            Map<String, Object> grp = new HashMap<>();
-                            grp.put("groupId", nameToGroupId.get(name));
-                            grp.put("groupName", name);
-                            grp.put("options", new ArrayList<Map<String, Object>>());
-                            groups.add(grp);
-                        }
-
-                        Map<String, Object> option = new HashMap<>();
-                        option.put("id", sku.getId());
-                        option.put("groupId", nameToGroupId.get(name));
-                        option.put("name", value);
-                        option.put("skuId", sku.getId());
-                        option.put("price", sku.getPrice());
-                        option.put("stock", sku.getStock());
-                        option.put("enabled", sku.getEnabled());
-
-                        for (Map<String, Object> g : groups) {
-                            if (g.get("groupId").equals(nameToGroupId.get(name))) {
-                                @SuppressWarnings("unchecked")
-                                List<Map<String, Object>> opts = (List<Map<String, Object>>) g.get("options");
-                                boolean exists = opts.stream().anyMatch(o ->
-                                        value.equals(o.get("name")) && sku.getId().equals(o.get("skuId")));
-                                if (!exists) {
-                                    opts.add(option);
-                                }
-                            }
-                        }
-                    }
-                } catch (Exception e) {
-                    log.warn("parse specs JSON failed for sku {}: {}", sku.getId(), e.getMessage());
-                }
-            }
-
-            result.put(productId.toString(), groups);
-        }
-        return Result.success(result);
-    }
 }