Fix redirect loop, Update laravel5-6.mdx (#3428)

Author: HazAT

src/platforms/php/guides/laravel/other-versions/laravel5-6.mdx

@@ -3,7 +3,6 @@ title: Laravel 5.x, 6.x and 7.x
 description: "Learn about using Sentry with Laravel 5.x, 6.x and 7.x."
 sidebar_order: 600
 redirect_from:
-  - /platforms/php/guides/laravel/other-versions/laravel5-6/
   - /platforms/php/guides/laravel/configuration/other-versions/laravel5-6/
 ---