Removing EC2 modules that are now available directly. (#873)

Author: gregharvey

modules/cloud/amazon/README.md

@@ -1,6 +1,3 @@
 # Modules pending upstream release.
 
-@see https://github.com/ansible/ansible/pull/61575/files
-@see https://github.com/ansible/ansible/pull/63168/files
-@see https://github.com/ansible/ansible/pull/46624/files
-@see https://github.com/ansible-collections/community.aws/pull/224
+None at the moment.