Remove unused imports

Nguyễn Xuân Quỳnh · Nguyễn Xuân Quỳnh · commit db20d3d754fa · 2019-02-22T18:29:04.000+07:00
diff --git a/tests/Support/SupportHelpersTest.php b/tests/Support/SupportHelpersTest.php
@@ -7,7 +7,6 @@
 use Mockery as m;
 use RuntimeException;
 use Illuminate\Support\Arr;
-use Illuminate\Support\Str;
 use PHPUnit\Framework\TestCase;
 use Illuminate\Support\Optional;
 use Illuminate\Contracts\Support\Htmlable;
