Merge "Remove <ctype.h> cruft." into main am: 389a40a0a8 am: a468e56569 am: bc717f9b8d am: 4ca2aabbff

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2455758

Change-Id: I095e65a53900155b51ea9d4fd8bfcc8af086dab1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>