Remove BC breaking Webmozart asserts

Author: tvdijen

composer.json

@@ -33,8 +33,7 @@
     "require": {
         "php": ">=5.5",
         "simplesamlphp/composer-module-installer": "~1.0",
-        "simplesamlphp/simplesamlphp-module-oauth": "~1.0",
-        "webmozart/assert": "^1.4"
+        "simplesamlphp/simplesamlphp-module-oauth": "~1.0"
     },
     "require-dev": {
         "simplesamlphp/simplesamlphp": "^1.17",

lib/Auth/Source/Twitter.php

@@ -2,8 +2,6 @@
 
 namespace SimpleSAML\Module\authtwitter\Auth\Source;
 
-use Webmozart\Assert\Assert;
-
 $default = dirname(dirname(dirname(dirname(dirname(__FILE__))))).'/oauth/libextinc/OAuth.php';
 $travis = dirname(dirname(dirname(dirname(__FILE__)))).'/vendor/simplesamlphp/simplesamlphp/modules/oauth/libextinc/OAuth.php';
 
@@ -62,8 +60,8 @@ class Twitter extends \SimpleSAML\Auth\Source
      */
     public function __construct($info, $config)
     {
-        Assert::isArray($info);
-        Assert::isArray($config);
+        assert(is_array($info));
+        assert(is_array($config));
 
         // Call the parent constructor first, as required by the interface
         parent::__construct($info, $config);
@@ -87,7 +85,7 @@ public function __construct($info, $config)
      */
     public function authenticate(&$state)
     {
-        Assert::isArray($state);
+        assert(is_array($state));
 
         // We are going to need the authId in order to retrieve this authentication source later
         $state[self::AUTHID] = $this->authId;