increase test coverage (#117)

70% test coverage
remove socialite

app/Actions/ServerProvider/DeleteServerProvider.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Actions\ServerProvider;
+
+use App\Models\ServerProvider;
+use Exception;
+
+class DeleteServerProvider
+{
+    /**
+     * @throws Exception
+     */
+    public function delete(ServerProvider $serverProvider): void
+    {
+        if ($serverProvider->servers()->exists()) {
+            throw new Exception('This server provider is being used by a server.');
+        }
+
+        $serverProvider->delete();
+    }
+}