Revert "Fix client boundary inheritance for barrel optimization (#64467)"

This reverts commit cb8fb32.

Author: huozhi

packages/next/src/build/webpack/loaders/next-barrel-loader.ts

@@ -221,12 +221,9 @@ async function getBarrelMapping(
             true,
             isClientEntry
           )
-
           if (targetMatches) {
             // Merge the export list
             exportList = exportList.concat(targetMatches.exportList)
-            // Inherit the client boundary from the target matched file
-            isClientEntry = isClientEntry || targetMatches.isClientEntry
           }
         })
       )

test/development/basic/barrel-optimization/barrel-optimization-mui.test.ts

@@ -14,7 +14,7 @@ import { hasRedbox } from 'next-test-utils'
         files: join(__dirname, 'fixture'),
 
         dependencies: {
-          '@mui/material': '5.15.15',
+          '@mui/material': '5.15.4',
           '@emotion/react': '11.11.1',
           '@emotion/styled': '11.11.0',
         },