Merge "Revert "Revert "Revert "Drop all path-related methods from...

Merge "Revert "Revert "Revert "Drop all path-related methods from android::String8"""" into main am: d395f638

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2744996



Change-Id: I666d28c5fc2f8a06c70fed42f686e3650588fda6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>