Merge "Revert "Revert "Drop all path-related methods from android::String8"""...

Merge "Revert "Revert "Drop all path-related methods from android::String8""" into main am: b2b037d9

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2745823



Change-Id: Id12d272082e193559f09793fb6d12329ed18b4a0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>