Removing the Git branch locally, and removing the remote tracking branch will rid your local development environment of the branch in question, but it will not remove it from any remote repositories ...

Keeping your code repositories in-house is a good way to avoid security leaks. Jack Wallen shows you how easy it is to connect to a Gogs local repository from the Git command line.

Hosting your own code repository has many benefits, such as security and ease of use. Jack Wallen shows you how to deploy a local repository to your data center with Gogs.

The second link above will fix that problem. Once the local repo is initialized and a remote is configured, you should be able to run git status, git diff, etc.