If you want to delete a local tag then you would do
git tag -d the_local_tag
But if you want to delete remote tag, then the syntax is a little different
git push origin :refs/tags/the_remote_tag
If you want to delete a local tag then you would do
git tag -d the_local_tag
But if you want to delete remote tag, then the syntax is a little different
git push origin :refs/tags/the_remote_tag