Remove unused field from code-intel issue template
Created by: sulunemre
One of the issue templates has the projects key in its header but this key is invalid and it does nothing. Valid keys are: about, title, labels, assignees. That's why I am removing it.
See: https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/configuring-issue-templates-for-your-repository#creating-issue-templates
Test plan
No review required