Merge "Revert "Revert "Revert "Revert "Drop all path-related methods from android::String8""""" into main am: 8245afd47d am: 74ee2a40f2

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2747144

Change-Id: Ie0868452f36f2d8d0688318eb3204e45d0a37010
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>