fixed:tf-goods组件修改

@@ -43,11 +43,9 @@
                         PRD_SKN: this.productSkn   // 商品SKN （可选）
                     };
 
-                    _.each(param, (v, k) => {
-                        if (param.k === '') {
-                            delete param[k];
+                    if (param.P_PARAM === '') {
+                        delete param.P_PARAM;
                     }
-                    });
 
                     this.$parent.addIntoWaiting(param);
                 }