Remove duplicate standalone check (vercel#60085)

## What?

I noticed this check is already in a block that does the exact same
check, so this one is no longer needed.

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Closes NEXT-1929

packages/next/src/build/index.ts

@@ -3046,58 +3046,56 @@ export default async function build(
               staticPages
             )
 
-            if (config.output === 'standalone') {
-              for (const file of [
-                ...requiredServerFiles.files,
-                path.join(config.distDir, SERVER_FILES_MANIFEST),
-                ...loadedEnvFiles.reduce<string[]>((acc, envFile) => {
-                  if (['.env', '.env.production'].includes(envFile.path)) {
-                    acc.push(envFile.path)
-                  }
-                  return acc
-                }, []),
-              ]) {
-                const filePath = path.join(dir, file)
-                const outputPath = path.join(
-                  distDir,
-                  'standalone',
-                  path.relative(outputFileTracingRoot, filePath)
-                )
-                await fs.mkdir(path.dirname(outputPath), {
-                  recursive: true,
-                })
-                await fs.copyFile(filePath, outputPath)
-              }
-              await recursiveCopy(
-                path.join(distDir, SERVER_DIRECTORY, 'pages'),
-                path.join(
-                  distDir,
-                  'standalone',
-                  path.relative(outputFileTracingRoot, distDir),
-                  SERVER_DIRECTORY,
-                  'pages'
-                ),
-                { overwrite: true }
+            for (const file of [
+              ...requiredServerFiles.files,
+              path.join(config.distDir, SERVER_FILES_MANIFEST),
+              ...loadedEnvFiles.reduce<string[]>((acc, envFile) => {
+                if (['.env', '.env.production'].includes(envFile.path)) {
+                  acc.push(envFile.path)
+                }
+                return acc
+              }, []),
+            ]) {
+              const filePath = path.join(dir, file)
+              const outputPath = path.join(
+                distDir,
+                'standalone',
+                path.relative(outputFileTracingRoot, filePath)
               )
-              if (appDir) {
-                const originalServerApp = path.join(
-                  distDir,
-                  SERVER_DIRECTORY,
-                  'app'
+              await fs.mkdir(path.dirname(outputPath), {
+                recursive: true,
+              })
+              await fs.copyFile(filePath, outputPath)
+            }
+            await recursiveCopy(
+              path.join(distDir, SERVER_DIRECTORY, 'pages'),
+              path.join(
+                distDir,
+                'standalone',
+                path.relative(outputFileTracingRoot, distDir),
+                SERVER_DIRECTORY,
+                'pages'
+              ),
+              { overwrite: true }
+            )
+            if (appDir) {
+              const originalServerApp = path.join(
+                distDir,
+                SERVER_DIRECTORY,
+                'app'
+              )
+              if (existsSync(originalServerApp)) {
+                await recursiveCopy(
+                  originalServerApp,
+                  path.join(
+                    distDir,
+                    'standalone',
+                    path.relative(outputFileTracingRoot, distDir),
+                    SERVER_DIRECTORY,
+                    'app'
+                  ),
+                  { overwrite: true }
                 )
-                if (existsSync(originalServerApp)) {
-                  await recursiveCopy(
-                    originalServerApp,
-                    path.join(
-                      distDir,
-                      'standalone',
-                      path.relative(outputFileTracingRoot, distDir),
-                      SERVER_DIRECTORY,
-                      'app'
-                    ),
-                    { overwrite: true }
-                  )
-                }
               }
             }
           })