[Bug]: repositories.bzl seems to be missing

[sin-ack]

What happened?

In #72 a Bzlmod extension was added, but the repositories.bzl file referenced from extensions.bzl seems to be missing in the repository.

Version

Development (host) and target OS/architectures: GNU/Linux

Output of bazel --version: 7.1.1

Version of the Aspect rules, or other relevant rules from your
WORKSPACE or MODULE.bazel file: 1.0.0

Language(s) and/or frameworks involved: -

How to reproduce

rules_rollup/rollup/extensions.bzl

Line 3 in a66680d

load(":repositories.bzl", "rollup_repositories")

Any other information?

No response

[kon72]

This is causing bazel mod command to fail in a project that depends on rules_rollup:

$ bazel mod graph
ERROR: Error loading '@@aspect_rules_rollup~//rollup:extensions.bzl' for module extensions, requested by @@aspect_rules_rollup~//:MODULE.bazel:20:23: at /private/var/tmp/_bazel_kon/145573fc157b84d695dc97cdf5deb424/external/aspect_rules_rollup~/rollup/extensions.bzl:3:6: cannot load '@@aspect_rules_rollup~//rollup:repositories.bzl': no such file: at /private/var/tmp/_bazel_kon/145573fc157b84d695dc97cdf5deb424/external/aspect_rules_rollup~/rollup/extensions.bzl:3:6: cannot load '@@aspect_rules_rollup~//rollup:repositories.bzl': no such file. Type 'bazel help mod' for syntax and help.

I think repositories.bzl file and the corresponding part in MODULE.bazel is leftover from #77 so hopefully it's safe to be removed.
I confirmed deleting them solved the mod command failure.