Don't dispatch legacy insets to client

The server won't dispatch the legacy content insets, stable insets, and
visible insets to the client. The insets would be computed from the
insets state by the client.

This CL also fixes the insets scaling issue in compatible mode.

Bug: 149813814
Fix: 169940916
Fix: 165412978
Test: atest WindowAddRemovePerfTest InsetsAnimationControlImplTest
            ActivityRecordTests DisplayPolicyLayoutTests
            InsetsPolicyTest InsetsStateControllerTest
Change-Id: I83570973f587a6abf887752494f750b46e3e484d