Remove middleware interfaces due to deprecation since Laravel 5.1

Author: okaufmann

src/Mcamara/LaravelLocalization/Middleware/LaravelLocalizationRedirectFilter.php

@@ -3,9 +3,8 @@
 use Closure;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
-use Illuminate\Contracts\Routing\Middleware;
 
-class LaravelLocalizationRedirectFilter implements Middleware {
+class LaravelLocalizationRedirectFilter {
 
     /**
      * Handle an incoming request.

src/Mcamara/LaravelLocalization/Middleware/LaravelLocalizationRoutes.php

@@ -1,10 +1,9 @@
 <?php namespace Mcamara\LaravelLocalization\Middleware;
 
 use Closure;
-use Illuminate\Contracts\Routing\Middleware;
 use Illuminate\Http\Request;
 
-class LaravelLocalizationRoutes implements Middleware {
+class LaravelLocalizationRoutes {
 
     /**
      * Handle an incoming request.

src/Mcamara/LaravelLocalization/Middleware/LocaleCookieRedirect.php

@@ -1,11 +1,9 @@
 <?php namespace Mcamara\LaravelLocalization\Middleware;
 
-use Illuminate\Contracts\Routing\Middleware;
 use Illuminate\Http\RedirectResponse;
 use Closure;
 
-
-class LocaleCookieRedirect implements Middleware {
+class LocaleCookieRedirect {
 
     /**
      * Handle an incoming request.

src/Mcamara/LaravelLocalization/Middleware/LocaleSessionRedirect.php

@@ -1,10 +1,9 @@
 <?php namespace Mcamara\LaravelLocalization\Middleware;
 
-use Illuminate\Contracts\Routing\Middleware;
 use Illuminate\Http\RedirectResponse;
 use Closure;
 
-class LocaleSessionRedirect implements Middleware {
+class LocaleSessionRedirect {
 
     /**
      * Handle an incoming request.