AC-12680: Decommission manage encryption key feature.

Author: admanesachin

app/code/Magento/EncryptionKey/Block/Adminhtml/Crypt/Key/Edit.php

@@ -9,6 +9,8 @@
  * Encryption key change edit page block
  *
  * @api
+ * @deprecated
+ * @see  Extensible Data ReEncryption Mechanism Implemented
  * @since 100.0.2
  */
 class Edit extends \Magento\Backend\Block\Widget\Form\Container

app/code/Magento/EncryptionKey/Block/Adminhtml/Crypt/Key/Form.php

@@ -11,6 +11,8 @@
  * Encryption key change form block
  *
  * @api
+ * @deprecated
+ * @see Extensible Data ReEncryption Mechanism Implemented
  * @since 100.0.2
  */
 class Form extends \Magento\Backend\Block\Widget\Form\Generic

app/code/Magento/EncryptionKey/Controller/Adminhtml/Crypt/Key.php

@@ -30,6 +30,8 @@
  *
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
  * @since 100.0.2
+ * @deprecated
+ * @see Extensible Reencryption Mechanism
  */
 class Change extends AbstractDb
 {
@@ -111,6 +113,8 @@ protected function _construct()
      * @param string|null $key
      * @return null|string
      * @throws FileSystemException|LocalizedException|Exception
+     * @deprecated
+     * @see Extensible Reencryption Mechanism
      */
     public function changeEncryptionKey($key = null)
     {
@@ -148,6 +152,8 @@ public function changeEncryptionKey($key = null)
      * Gather all encrypted system config values and re-encrypt them
      *
      * @return void
+     * @deprecated
+     * @see Extensible Reencryption Mechanism
      */
     protected function _reEncryptSystemConfigurationValues()
     {
@@ -183,6 +189,8 @@ protected function _reEncryptSystemConfigurationValues()
      * Gather saved credit card numbers from sales order payments and re-encrypt them
      *
      * @return void
+     * @deprecated
+     * @see Extensible Reencryption Mechanism
      */
     protected function _reEncryptCreditCardNumbers()
     {