Cleanup Installer module scaffolding

modules/Installer/Http/Routes/install.php

@@ -0,0 +1,3 @@
+<?php
+
+Route::get('/', 'InstallerController@index');

modules/Installer/Http/Routes/update.php

@@ -0,0 +1,3 @@
+<?php
+
+Route::get('/update', 'InstallerController@index');

modules/Installer/Http/routes.php

@@ -1,7 +0,0 @@
-<?php
-
-Route::group(['middleware' => []], function() {
-
-    Route::get('/', 'InstallerController@index');
-
-});