Removing the deprecated order wrapper class (#4496)

* Removing the inclusion of the order wrapper class

* Removing the class

* Fix docblock

Author: wjrosa

changelog.txt

@@ -1,6 +1,7 @@
 *** Changelog ***
 
 = 9.7.0 - xxxx-xx-xx =
+* Dev - Removes the inclusion of the deprecated WC_Stripe_Order class
 * Add - Introduces a new banner to promote the Optimized Checkout feature in the Stripe settings page for versions 9.8 and above
 * Add - Introduces a new inbox note to promote the Optimized Checkout feature on version 9.8 and later
 * Update - Removes BNPL payment methods (Klarna and Affirm) when other official plugins are active