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

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

Change-Id: I5deb259e5dffe9048010bb10e96b8bde7a2d1418
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>