controller - removeAttribute magento 2 -

how remove product attribute in backand controller in magento 2.1?

in magento 1.* was:

$setup = mage::getresourcemodel('catalog/setup','catalog_setup'); $setup->removeattribute('catalog_product','my_attribute'); 

edit: not offer me use install/uninstall methods. read attention question: "remove attribute in backand controller"

edit 2: find answer

namespace company\module\controller\adminhtml\shoptheme; //optional  use magento\eav\setup\eavsetup; use magento\eav\setup\eavsetupfactory; use magento\framework\setup\moduledatasetupinterface;  class removeattribute extends \magento\backend\app\action {     private $datasetup;     private $eavsetupfactory;      public function __construct(         \magento\backend\app\action\context $context,         \magento\framework\setup\moduledatasetupinterface $datasetup,         \magento\eav\setup\eavsetupfactory $eavsetupfactory     ) {         $this->datasetup = $datasetup;         $this->eavsetupfactory = $eavsetupfactory;         parent::__construct($context);     }      public function execute() {         $eavsetup = $this->eavsetupfactory->create(['setup' => $this->datasetup]);         $eavsetup->removeattribute(             \magento\catalog\model\product::entity,             'prod_special_descr');          $this->messagemanager->addsuccess('attribute removed');         $this->_redirect('admin/dashboard/');     } } 

you can remove attribute using below setup script :

<?php  namespace namespace\company\setup;  use magento\eav\setup\eavsetup; use magento\eav\setup\eavsetupfactory; use magento\framework\setup\installdatainterface; use magento\framework\setup\modulecontextinterface; use magento\framework\setup\moduledatasetupinterface;  class installdata implements installdatainterface {     private $eavsetupfactory;      public function __construct(eavsetupfactory $eavsetupfactory)     {         $this->eavsetupfactory = $eavsetupfactory;     }      public function install(moduledatasetupinterface $setup, modulecontextinterface $context)     {         $eavsetup = $this->eavsetupfactory->create(['setup' => $setup]);         $eavsetup->removeattribute(           \magento\catalog\model\product::entity,             'my_attribute');     } }