Merge "Delete update_54_kernel.sh" am: 42698a6280 am: 255d73bb12

Original change: https://android-review.googlesource.com/c/platform/prebuilts/qemu-kernel/+/1532758

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ie86ca39f42dcf3cad87d6ebe0ca7a891639b3be4