Revert "MAGNSWTC-17: Add ability to change Input type while saving attribute"

This reverts commit 7e478f6.

Author: Vadim Zubovich

app/code/Magento/Catalog/Controller/Adminhtml/Product/Attribute/Save.php

@@ -167,9 +167,6 @@ public function execute()
 
                 $data['attribute_code'] = $model->getAttributeCode();
                 $data['is_user_defined'] = $model->getIsUserDefined();
-                if (isset($data['frontend_input'])) {
-                    $model->changeFrontendType($data['frontend_input']);
-                }
                 $data['frontend_input'] = $model->getFrontendInput();
             } else {
                 /**

app/code/Magento/Eav/Model/Entity/Attribute/AbstractAttribute.php

@@ -338,17 +338,6 @@ public function setDefaultValue($defaultValue)
         return $this->setData('default_value', $defaultValue);
     }
 
-    /**
-     * Change Attribute Fronted input type
-     *
-     * @param string $value
-     * @return $this
-     */
-    public function changeFrontendType($value)
-    {
-        return $this;
-    }
-
     /**
      * @return int
      */