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

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

Change-Id: I652e4558540e2c43f7ba383885352f8fd4c7dc50
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>