Revert "Temporarily use blockimgdiff v2 for OTA."

The workround should stay in mnc-dr-dev branch only.

This reverts commit d07bfc519673fdba66448f0a81ef869b922c3804.

Change-Id: If8d2d88d50e87f031ed6df44b01a1e9e38a7f97f
1 file changed