Minor - remove unused lib, upgrade composer

composer.json

@@ -33,18 +33,19 @@
     },
     "require": {
         "php": "^7.2.0",
-        "ext-intl": "*",
-        "ext-gd": "*",
+        "ext-bcmath": "*",
         "ext-curl": "*",
-        "ext-zlib": "*",
-        "ext-zip": "*",
-        "ext-xml": "*",
-        "ext-json": "*",
-        "ext-mbstring": "*",
-        "ext-libxml": "*",
         "ext-dom": "*",
         "ext-fileinfo": "*",
-        "ext-bcmath": "*",
+        "ext-gd": "*",
+        "ext-intl": "*",
+        "ext-json": "*",
+        "ext-libxml": "*",
+        "ext-mbstring": "*",
+        "ext-soap" : "*",
+        "ext-xml": "*",
+        "ext-zip": "*",
+        "ext-zlib": "*",
         "doctrine/orm": "~2.6",
         "doctrine/dbal": "~2.9",
         "doctrine/data-fixtures": "~1.0@dev",
@@ -120,14 +121,13 @@
 
         "zendframework/zend-config": "~3.2",
         "zendframework/zend-feed": "~2.10",
-        "zendframework/zend-filter": "~2.8",
-        "zendframework/zend-http": "~2.8",
+        "zendframework/zend-filter": "~2.9",
+        "zendframework/zend-http": "~2.10",
         "zendframework/zend-permissions-acl": "~2.7",
-        "zendframework/zend-soap": "~2.6",
+        "zendframework/zend-soap": "~2.8",
         "robrichards/xmlseclibs": "3.0.*",
         "szymach/c-pchart": "~3.0",
         "endroid/qr-code": "~3.4",
-        "alchemy/zippy": "~0.4",
         "mpdf/mpdf": "~8.0",
         "oneup/flysystem-bundle": "~3.0",
         "studio-42/elfinder": "2.1.*",

src/CoreBundle/Entity/Resource/ResourceLink.php

@@ -3,7 +3,6 @@
 
 namespace Chamilo\CoreBundle\Entity\Resource;
 
-use Alchemy\Zippy\Adapter\Resource\ResourceInterface;
 use Chamilo\CoreBundle\Entity\Course;
 use Chamilo\CoreBundle\Entity\Session;
 use Chamilo\CoreBundle\Entity\Usergroup;
@@ -16,7 +15,7 @@ use Doctrine\ORM\Mapping as ORM;
  * @ORM\Entity
  * @ORM\Table(name="resource_link")
  */
-class ResourceLink implements ResourceInterface
+class ResourceLink
 {
     public const VISIBILITY_DRAFT = 0;
     public const VISIBILITY_PENDING = 1;