Revert "Merge pull request #229 from xqliu/test/add-ut-infrastructure"

This reverts commit 683e77b92f, reversing
changes made to 791cecd2ff.

web/src/test/test-utils.tsx

@@ -1,18 +0,0 @@
-import { ReactElement } from 'react'
-import { render, RenderOptions } from '@testing-library/react'
-
-/**
- * Custom render function that wraps components with common providers
- */
-export function renderWithProviders(
-  ui: ReactElement,
-  options?: Omit<RenderOptions, 'wrapper'>
-) {
-  return render(ui, { ...options })
-}
-
-// Re-export everything from @testing-library/react
-export * from '@testing-library/react'
-
-// Override render with our custom version
-export { renderWithProviders as render }