Retire use_art_service_v2 flag and dalvik.vm.features properties.

Modules are now built from source on next.

(partially cherry picked from
https://googleplex-android-review.git.corp.google.com/c/platform/frameworks/base/+/26587855)

Bug: 305000383
Test: atest CompilationTestCases
Test: atest CtsStorageHostTestCases:StorageHostTest
Merged-In: I1663abe03d6a154a135263fab1b23239aac27688
Change-Id: I4958938c0f825456de7fb52a6a6fed76ddafc450