Revert "sub plan page (#885)" (#886)

This reverts commit 443ad37b6a.

projects/app/src/pages/tools/index.tsx

@@ -40,15 +40,6 @@ const Tools = () => {
             link: getDocPath('/docs/intro')
           }
         ]
-      : []),
-    ...(feConfigs?.show_pay
-      ? [
-          {
-            icon: 'support/bill/priceLight',
-            label: '计费说明',
-            link: '/price'
-          }
-        ]
       : [])
   ];