Uninstall the environment and links.

def uninstall(self):
        """Uninstall the environment and links."""
        if path.isdir(self.env_bin):
            self.remove_links()
        if path.isdir(self.env):
            print_pretty("<FG_BLUE>Removing env {}...<END>".format(self.env))
            shutil.rmtree(self.env)