Remove optional OAuth2 dependencies in portal-vulcan

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Completed
• Affects Version/s: 7.1.X, 7.2.X, Master
• Fix Version/s: 7.1.X, 7.2.X, 7.3.1 CE GA2, 7.3.2 CE GA3, Master
• Component/s: Headless Delivery API
• Labels:
  • 7110-sp-pending
  • 7210-sp-pending
  • fc_20_03
• Branch Version/s:
  7.2.x, 7.1.x
• Backported to Branch:
  Committed
• Epic/Theme:
  • Technical_Debt

This is a follow-up to LPS-110306. Since OAuth2 is a bundled app going forward, we should remove the optional dependencies in portal-vulcan-api/bnd.bnd and portal-vulcan-impl/bnd.bnd.

This change is for master, 7.2.x, and 7.1.x.

Example: in 7.1.x, these two commits should be reverted:
8ebb73e then 0d50c6c

Testing:
If sending a pull request to yourself, run ci:test:lpkg. Must pass lpkg-base and lpkg-independence.