Clean up unused uad type description

• Type: Task
• Status: Closed
• Priority: Trivial
• Resolution: Completed
• Affects Version/s: None
• Fix Version/s: 7.0.0 DXP FP47, 7.0.0 DXP SP8, Master
• Component/s: User Management > Personal Data
• Labels:
  • liferay-digital-enterprise-70-sp8
  • liferay-fixpack-de-47-7010
• Epic Link: [GDPR] Framework
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/57884

The uad type description attribute is unused and is removed from the UADDisplay interface in 64add41af41750fe052ff95665f698052b8533f9. 

We need to clean up any leftover usages in the implementations and remove the attribute from the service.xml and service builder.