refactor: remove package @affine/datacenter (#1705)

nyc.config.js

@@ -4,9 +4,5 @@
 const defaultExclude = require('@istanbuljs/schema/default-exclude');
 
 module.exports = {
-  exclude: [
-    ...defaultExclude,
-    // data-center will be removed in the future, we don't need to coverage it
-    'packages/data-center/**',
-  ],
+  exclude: [...defaultExclude],
 };