Revert "earlysquisher: squish apks before they're eaten by blockimgdiff"

This reverts commit 98017b8479e25f105195007ed7d60d2ac6f1c9ca.

Change-Id: I28e2155392ffd2e15b161106dab17f235a6f93b7
Merge "Revert "earlysquisher: squish apks before they're eaten by blockimgdiff"" into L5