Revert "local_utils: add IsPrintableAscii()"

Reverted for narrowing conversion issues.

This reverts commit 93c9d132a6bfc3a731f743a4d67df78c40640943.

Bug: 31976293
Change-Id: I4c54ec3c9841e467db967b672b59cf46b5e2b1a5
2 files changed