AC-12682: Detach image cache generation from encryption key

Author: tranthienbinh1989

app/code/Magento/Catalog/Model/View/Asset/Image.php

@@ -299,10 +299,6 @@ private function getImageInfo()
         // even if an encryption key was changed.
         $keys = explode("\n", $this->encryptor->exportKeys());
 
-        if (count($keys) === 1) {
-            return $this->generatePath($data, $this->decodeKey($keys[0]));
-        }
-
         foreach ($keys as $key) {
             $key = $this->decodeKey($key);