fix: let rollup to the bundling for better prefetching

Author: maiieul

packages/qwik/src/optimizer/src/plugins/plugin.ts

@@ -917,7 +917,6 @@ export const manifest = ${JSON.stringify(manifest)};\n`;
     setSourceMapSupport,
     configureServer,
     handleHotUpdate,
-    manualChunks,
   };
 }
 

packages/qwik/src/optimizer/src/plugins/rollup.ts

@@ -187,7 +187,6 @@ export function normalizeRollupOutputOptionsObject(
   const outputOpts: Rollup.OutputOptions = { ...rollupOutputOptsObj };
   const opts = qwikPlugin.getOptions();
   const optimizer = qwikPlugin.getOptimizer();
-  const manualChunks = qwikPlugin.manualChunks;
   if (opts.target === 'client') {
     // client output
     if (!outputOpts.assetFileNames) {
@@ -244,13 +243,6 @@ export function normalizeRollupOutputOptionsObject(
   if (opts.target === 'client') {
     // client should always be es
     outputOpts.format = 'es';
-    const prevManualChunks = outputOpts.manualChunks;
-    if (prevManualChunks && typeof prevManualChunks !== 'function') {
-      throw new Error('manualChunks must be a function');
-    }
-    outputOpts.manualChunks = prevManualChunks
-      ? (id, meta) => prevManualChunks(id, meta) || manualChunks(id, meta)
-      : manualChunks;
   }
 
   if (!outputOpts.dir) {