Reproduction link or steps

REPL

What is expected?

lazy-BUetEruU.js is not output because it is not used in root.js.

What is actually happening?

lazy-BUetEruU.js is output.

System Info

REPL 1.0.0-rc.15

Any additional comments?

If you set output.minify: false, you can see that the dynamic import is still there. This means the dynamic import is removed in the minification step.

Originally reported at vitejs/vite#21968