Move pybind11 over, delete the WORKSPACE files, and fix a test which
assumed WORKSPACE support was enabled.
---------
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
@AustinSchuh's `rules_cc` patches have all been merged upstream. This
updates `rules_cc` to include the relevant patches, removing the need to
patch it here.
This also squashes this warning on every build:
> WARNING: For repository 'rules_cc', the root module requires module
version rules_cc@0.2.13, but got rules_cc@0.2.14 in the resolved
dependency graph. Please update the version in your MODULE.bazel or set
--check_direct_dependencies=off
