Remove references of NetworkAgentConfig constructor

This is hidden, use public Builder instead.

Test: TH
Bug: 182963397
Merged-In: Ib8ea2a17276cfd000e7003fc86d15458e1f82b39
Change-Id: Ib8ea2a17276cfd000e7003fc86d15458e1f82b39
  (cherry-picked from ag/13925162)
2 files changed