style: 移除购买授权链接的冗余样式

Author: piexlMax(奇淼

docs/.vitepress/theme/styles/global.scss

@@ -116,9 +116,4 @@ a[href="/empower/index.html"]::after {
   box-shadow: 0 2px 6px rgba(0,0,0,.15);
   transform: rotate(8deg);
   pointer-events: none;
-}
-
-/* 顶栏导航中的“购买授权” */
-.VPNavBar a[href="https://plugin.gin-vue-admin.com/license"] {
-  position: relative;
-}
+}