Remove post-install verification

post-install verification calls range_sha1() and checks if the given
partition has expected contents. It takes roughly 20 seconds on
angler with 2.8G system image. Remove it to speed up OTA update. Also
abort the update if block_image_update() fails, as we were relying on
post-install verification to capture block_image_update() failures.

cherry-picked from commit b2deb220335e1059a3c95d8063705f5706604bdb
Bug: 27729678
Change-Id: I8123cd8929295ec26df247acf6bb51df813771d9
1 file changed