Remove extra error logs when parsing non-EROFS images am: 32b1d7bdcb

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2592046

Change-Id: Ibe3eccd1bbfffa067b9b53a44c889b5682be5cc7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>