remove setup.js

Author: mattzcarey

vitest.config.ts

@@ -3,7 +3,6 @@ import { defineConfig } from 'vitest/config';
 export default defineConfig({
     test: {
         globals: true,
-        environment: 'node',
-        setupFiles: ['./src/__tests__/setup.ts']
+        environment: 'node'
     }
 });