Shopping service module should not use ServiceReference annotation to point to itself

• Type: Bug
• Status: Closed
• Resolution: Won't Fix
• Affects Version/s: Master
• Fix Version/s: None
• Component/s: Util > Shopping
• Labels: None
• Git Pull Request: https://github.com/pei-jung/liferay-portal/pull/193

A new source formatting rule was added to ensure a service module does not use @ServiceReference to get its own services (see --LPS-72562--).  All violating occurrences of @ServiceReference should be replaced with @BeanReference.

modules/apps/shopping/shopping-service/src/main/java/com/liferay/shopping/service/impl/ShoppingCategoryServiceImpl.java
modules/apps/shopping/shopping-service/src/main/java/com/liferay/shopping/service/impl/ShoppingItemServiceImpl.java