removed .content and .fieldset selectors

Author: solwininfotech

app/design/frontend/Magento/luma/Magento_Checkout/web/css/source/module/_cart.less

@@ -727,16 +727,14 @@
                     position: static;
                 }
             }
-            .content {
-                .fieldset {
-                    .actions-toolbar {
-                        width: auto;
-                    }
-                }
-            }
+
             &.discount {
                 width: auto;
             }
+
+            .actions-toolbar {
+                width: auto;
+            }
         }
     }