[MS51] Remove NetworkTemplate#buildTemplate* usages from SettingsLib

This is a no-op refactoring.
These functions are deprecated and replaced by
NetworkTemplate#Builder, use public API instead.

Test: make RunSettingsLibRoboTests
Bug: 204830222
Change-Id: Idc2a09d8e3789ca2c7a97691cfad4b2e2b417f0d