chore: remove old issue template

[jonasgloning]

This way our new global issue template applies

[codeclimate[bot]]

Code Climate has analyzed commit f45a9ea6 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 69.2% (0.0% change).

View more on Code Climate.

[github-actions[bot]]

:tada: This PR is included in version 1.1.0-rc.1 :tada:

The release is available on:

• npm package (@rc dist-tag)
• GitHub release
• v1.1.0-rc.1

Your semantic-release bot :package::rocket:

[github-actions[bot]]

:tada: This PR is included in version 1.1.0-rc.2 :tada:

The release is available on:

• npm package (@rc dist-tag)
• GitHub release
• v1.1.0-rc.2

Your semantic-release bot :package::rocket: