Revert "add trunksize as restriction for function parseClearEncryptedSizes()"

Bug: 152541934
Bug: 152531488

This reverts commit bce9a57e.

Reason for revert:
This change aims at fixing b/124777526, but it has led to two new bugs: b/152531488 and b/152541934.

Change-Id: I812c64a68c15542dec2521b985e987f5329a1320