fix: remove unnecessary repo level config

Author: jhosteny

git.go

@@ -79,9 +79,6 @@ func (g *GitClient) Init(branch string) error {
 	if err := g.command("git", "config", "user.email", "concourse@local").Run(); err != nil {
 		return fmt.Errorf("failed to configure git email: %s", err)
 	}
-	if err := g.command("git", "config", "url.https://x-oauth-basic@github.com/.insteadOf", "git@github.com:").Run(); err != nil {
-		return fmt.Errorf("failed to configure github url: %s", err)
-	}
 	return nil
 }