Retire obsolete 32bit-only targets am: 5809470ed3 am: 48d0665cd7 am: 71163f9c2b

Original change: https://android-review.googlesource.com/c/device/generic/car/+/2789812

Change-Id: I53c703b07efb542be898e05179ba4a24da271bd3
Signed-off-by: Automerger Merge Worker <[email protected]>