[automerger skipped] Remove bit32 from lua libraries as this is being deprecated in 5.3 and removed in lua 5.4 am: c71e760765 am: e462b10852 -s ours

am skip reason: Change-Id I3772f149527cb6aca037956ac84e97acdcafcdee with SHA-1 86435cb397 is in history

Original change: https://android-review.googlesource.com/c/platform/external/libtextclassifier/+/1393316

Change-Id: Ide769dcf499c68d0681f13c65f85526d6765c4bb