Remove `BFormRadio` from `GlFormRadio`
## [BootstrapVue props we should support](https://bootstrap-vue.org/docs/components/form-radio#comp-ref-b-form-radio)
- `aria-label`
- `aria-labelledby`
- `checked`
- `disabled`
- `id`
- `name`
- `required`
- `state`
- `value`
## [BootstrapVue props we should consider _not_ supporting](https://bootstrap-vue.org/docs/components/form-radio#comp-ref-b-form-radio)
https://gitlab-org.gitlab.io/frontend/bootstrapvue-component-usage-breakdown/components.json can be used as a starting point to see if the prop is used, but should not be considered an exhaustive list (it does not check https://gitlab.com/gitlab-org/customers-gitlab-com/ or Switchboard, please do this manually). We should weigh the pros and cons of supporting each prop individually.
- `size`
- `plain`
- `inline`
- `autofocus`
- `button`
- `button-variant`
- `form`
## [BootstrapVue slots we should support](https://bootstrap-vue.org/docs/components/form-radio#comp-ref-b-form-radio-slots)
- `default`
## [BootstrapVue events we should support](https://bootstrap-vue.org/docs/components/form-radio#comp-ref-b-form-radio-events)
- `change`
- `input`
issue