Gem::ConfigFile#remove_api_key_from_file

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/config_file.rb, line 833
def remove_api_key_from_file(host)
  return unless File.exist?(credentials_path)

  unless File.writable?(credentials_path)
    alert_warning "The API key moved to the credential store but the plain text copy " \
                  "in #{credentials_path} could not be removed. Delete it yourself."
    return
  end

  key = self.class.normalize_credentials_key(host)
  config = load_file(credentials_path)
  return unless config.key?(key)

  config.delete(key)
  write_credentials(config)
  load_api_keys
end