Laravel Auth Routes Without Registration

auth_routes.php

// Auth Routes
Route::group(['namespace' =>  'Auth'], function () {
    Route::get('login', 'LoginController@showLoginForm')->name('login');
    Route::post('login', 'LoginController@login')->name('login');
    Route::post('logout', 'LoginController@logout')->name('logout');

    Route::post('password/email', 'ForgotPasswordController@sendResetLinkEmail')->name('password.email');
    Route::get('password/reset', 'ForgotPasswordController@showLinkRequestForm')->name('password.request');
    Route::post('password/reset', 'ResetPasswordController@reset');
    Route::get('password/reset/{token}', 'ResetPasswordController@showResetForm')->name('password.reset');
});