Remove jira.yml from repositories

As we are not using jira anymore, I am removing it from all our repositories

- sentry-javascript https://github.com/getsentry/sentry-javascript/pull/6026
- sentry-wizard https://github.com/getsentry/sentry-wizard/pull/204
- sentry-python https://github.com/getsentry/sentry-python/pull/1707