Bug: remove not existing model to Mage_Eav_Model_Resource_Entity_Attribute_Group (#5095)

Author: sreichel

.phpstan.dist.baseline.neon

@@ -2172,12 +2172,6 @@ parameters:
 			count: 1
 			path: app/code/core/Mage/Eav/Model/Entity/Attribute/Abstract.php
 
-		-
-			rawMessage: 'Call to an undefined method Mage_Eav_Model_Resource_Entity_Attribute_Group::deleteGroups().'
-			identifier: method.notFound
-			count: 1
-			path: app/code/core/Mage/Eav/Model/Entity/Attribute/Group.php
-
 		-
 			rawMessage: 'Call to an undefined method Mage_Eav_Model_Entity_Collection_Abstract::getStoreId().'
 			identifier: method.notFound

app/code/core/Mage/Eav/Model/Entity/Attribute/Group.php

@@ -41,14 +41,4 @@ public function itemExists()
     {
         return $this->_getResource()->itemExists($this);
     }
-
-    /**
-     * Delete groups
-     *
-     * @return $this
-     */
-    public function deleteGroups()
-    {
-        return $this->_getResource()->deleteGroups($this);
-    }
 }