Remove rollup_module from build_release_applications
Remove rollup_module from build_release_applications

This method is now unused, as all legacy files are copied by GN.

R=8915f5d5c39a08c5a3e8a8d7314756e4580816f9@chromium.org

Bug: 1131500
Change-Id: Ibf74a1ed7752ffb2c38689af71c754242fce2bd0
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2484715
Reviewed-by: Paul Lewis <8915f5d5c39a08c5a3e8a8d7314756e4580816f9@chromium.org>
Commit-Queue: Tim van der Lippe <dba8716ee7f8d16236046f74d2167cb94410f6ed@chromium.org>
Auto-Submit: Tim van der Lippe <dba8716ee7f8d16236046f74d2167cb94410f6ed@chromium.org>

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