chore: remove lockfile

[MichaelDeBoey]

For more info, see https://github.com/remix-run/remix/pull/3110.

You should probably also implement something similar in remix.init for only ignoring these files in the repo but not when the project is created like we did in https://github.com/remix-run/indie-stack/pull/79, https://github.com/remix-run/blues-stack/pull/67 & https://github.com/remix-run/grunge-stack/pull/53.