diff --git a/test/integration/config-mjs/next.config.mjs b/test/integration/config-mjs/next.config.mjs
index 0a5257017eccf..84b5831fc866e 100644
--- a/test/integration/config-mjs/next.config.mjs
+++ b/test/integration/config-mjs/next.config.mjs
@@ -13,13 +13,4 @@ export default {
   env: {
     customVar: 'hello',
   },
-  webpack(config, { buildId, webpack }) {
-    config.plugins.push(
-      new webpack.DefinePlugin({
-        'process.env.CONFIG_BUILD_ID': JSON.stringify(buildId),
-      })
-    )
-
-    return config
-  },
 }
diff --git a/test/integration/config-mjs/pages/build-id.js b/test/integration/config-mjs/pages/build-id.js
deleted file mode 100644
index 65d5d4b5c8200..0000000000000
--- a/test/integration/config-mjs/pages/build-id.js
+++ /dev/null
@@ -1,3 +0,0 @@
-export default () => {
-  return <p id="buildId">{process.env.CONFIG_BUILD_ID}</p>
-}
diff --git a/test/integration/config-mjs/test/index.test.js b/test/integration/config-mjs/test/index.test.js
index 5644ed13b90e9..5a67a225fb7d7 100644
--- a/test/integration/config-mjs/test/index.test.js
+++ b/test/integration/config-mjs/test/index.test.js
@@ -28,7 +28,6 @@ describe('Configuration', () => {
     // pre-build all pages at the start
     await Promise.all([
       renderViaHTTP(context.appPort, '/next-config'),
-      renderViaHTTP(context.appPort, '/build-id'),
       renderViaHTTP(context.appPort, '/module-only-component'),
     ])
   })
@@ -58,11 +57,6 @@ describe('Configuration', () => {
     expect($('#server-and-client').text()).toBe('/static')
   })
 
-  test('renders the build id in development mode', async () => {
-    const $ = await get$('/build-id')
-    expect($('#buildId').text()).toBe('development')
-  })
-
   test('correctly imports a package that defines `module` but no `main` in package.json', async () => {
     const $ = await get$('/module-only-content')
     expect($('#messageInAPackage').text()).toBe('OK')
diff --git a/test/integration/config/next.config.js b/test/integration/config/next.config.js
index 5e195888f7681..e71caf99a7fed 100644
--- a/test/integration/config/next.config.js
+++ b/test/integration/config/next.config.js
@@ -13,13 +13,4 @@ module.exports = {
   env: {
     customVar: 'hello',
   },
-  webpack(config, { buildId, webpack }) {
-    config.plugins.push(
-      new webpack.DefinePlugin({
-        'process.env.CONFIG_BUILD_ID': JSON.stringify(buildId),
-      })
-    )
-
-    return config
-  },
 }
diff --git a/test/integration/config/test/index.test.js b/test/integration/config/test/index.test.js
index 5644ed13b90e9..5a67a225fb7d7 100644
--- a/test/integration/config/test/index.test.js
+++ b/test/integration/config/test/index.test.js
@@ -28,7 +28,6 @@ describe('Configuration', () => {
     // pre-build all pages at the start
     await Promise.all([
       renderViaHTTP(context.appPort, '/next-config'),
-      renderViaHTTP(context.appPort, '/build-id'),
       renderViaHTTP(context.appPort, '/module-only-component'),
     ])
   })
@@ -58,11 +57,6 @@ describe('Configuration', () => {
     expect($('#server-and-client').text()).toBe('/static')
   })
 
-  test('renders the build id in development mode', async () => {
-    const $ = await get$('/build-id')
-    expect($('#buildId').text()).toBe('development')
-  })
-
   test('correctly imports a package that defines `module` but no `main` in package.json', async () => {
     const $ = await get$('/module-only-content')
     expect($('#messageInAPackage').text()).toBe('OK')