Revert^4 "Enable dex container (DEX v41) for the whole system"

This reverts commit 0968a93679dbaa19d6cb425cba537ac883baee21.

Reason for revert: Reland

Change-Id: I78a0097b9bea6da83dbab2fd507670bbf2edab35
diff --git a/java/dex.go b/java/dex.go
index 6f1c09d..91c2452 100644
--- a/java/dex.go
+++ b/java/dex.go
@@ -223,6 +223,13 @@
 	if err != nil {
 		ctx.PropertyErrorf("min_sdk_version", "%s", err)
 	}
+	if effectiveVersion.FinalOrFutureInt() >= 35 {
+		// V is 35, but we have not bumped the SDK version yet, so check for both.
+		if ctx.Config().PlatformSdkVersion().FinalInt() >= 35 ||
+			ctx.Config().PlatformSdkCodename() == "VanillaIceCream" {
+			flags = append([]string{"-JDcom.android.tools.r8.dexContainerExperiment"}, flags...)
+		}
+	}
 
 	// If the specified SDK level is 10000, then configure the compiler to use the
 	// current platform SDK level and to compile the build as a platform build.