Remove experiment code for moduleStorage

This reverts changes I51cfd5637 and Id2835eca4. We got all the data we needed.
Results (and, hopefully, the full dataset) will be publicized within two weeks.

Bug: 56397
Change-Id: Id39d4457a9b21c4e53e976cd3995c910a7d7031b
Merge "Remove experiment code for moduleStorage"