Remove multidex version genrules

These version files appear to be unused, and we don't really want
to support having the build access the git history.

Bug: 307824623
Test: Presubmits
Change-Id: Id5700bf4a56955bdf6edd4c50ceefa4184f54555

genrule/allowlists.go

@@ -40,8 +40,6 @@ var (
 		"aidl-golden-test-build-hook-gen",
 		"aidl_camera_build_version",
 		"android-cts-verifier",
-		"android-support-multidex-instrumentation-version",
-		"android-support-multidex-version",
 		"angle_commit_id",
 		"atest_integration_fake_src",
 		"awkgram.tab.h",