[automerger skipped] Removing `keystore2_attest_symmetric_key_fail_sys_error` test. am: c2ca61b0dc -s ours

am skip reason: Merged-In I783796fd9478b7f7f9270c9e78d9b12e28d955db with SHA-1 0bbcc06044 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/security/+/29009600

Change-Id: Ia941502c4dbb7a2800aa183e13b186dd964db3cf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>