Revert "Revert "Never strip and store dex files uncompressed when they are preopted on system.""

This reverts commit 67e8ec19.

Test: build && atest android.text.cts.EmojiTest#testEmojiGlyphWebView on Cuttlefish
Exempt-From-Owner-Approval: Got +2 from Colin, latest PS is a rebase across conflicts.

Change-Id: I99faf0f2ec698d70c107516bd43756b9ddcb90d0