Turns out in https://github.com/github/codeql/pull/21371 I was right
about `java_*` rules not relying on autoload anywhere, but it turns out
some `cc_*` rules still relied on autoload. This autoload is currently
configured in the internal repository, but we want to remove it
eventually. This patch:
* adds explicit loads to `rules_cc`
* removes an obsolete file (that depedency has its own bazel module
since some time, we just forgot to remove the old file)