refactor: remove unused variables

Author: kenjis

tests/Unit/UserTest.php

@@ -76,15 +76,15 @@ public function testLastLogin()
         // No logins found.
         $this->assertNull($this->user->lastLogin());
 
-        $login1 = fake(
+        fake(
             LoginModel::class,
             ['identifier' => $this->user->email, 'user_id' => $this->user->id]
         );
         $login2 = fake(
             LoginModel::class,
             ['identifier' => $this->user->email, 'user_id' => $this->user->id]
         );
-        $login3 = fake(
+        fake(
             LoginModel::class,
             ['identifier' => $this->user->email, 'user_id' => $this->user->id, 'success' => false]
         );