Git is a distributed version-control system for tracking changes in source code during software development.

delete local tag 'v2.0.1'

git tag -d v2.0.1

delete remote tag 'v2.0.1' (eg, GitHub version too)

git push origin :refs/tags/v2.0.1

alternative approach

git push --delete origin v2.0.1
git tag -d v2.0.1